Sequences

392,541 sequences

List of ordered areas of Pythagorean triangles.A009111
List of ordered areas of Pythagorean triangles.
Areas of Pythagorean triangles: numbers which can be the area of a right triangle with integer sides.A009112
Areas of Pythagorean triangles: numbers which can be the area of a right triangle with integer sides.
Expansion of e.g.f. cos(x)/exp(sinh(x)).A009113
Expansion of e.g.f. cos(x)/exp(sinh(x)).
Expansion of e.g.f. cos(x)/exp(tan(x)).A009114
Expansion of e.g.f. cos(x)/exp(tan(x)).
Expansion of e.g.f. cos(x)/exp(tanh(x)).A009115
Expansion of e.g.f. cos(x)/exp(tanh(x)).
Expansion of e.g.f. cos(x) / exp(x).A009116
Expansion of e.g.f. cos(x) / exp(x).
Expansion of e.g.f.: 1/2 + exp(-4*x)/2.A009117
Expansion of e.g.f.: 1/2 + exp(-4*x)/2.
Expansion of e.g.f. cos(x/cos(x)) (even powers only).A009118
Expansion of e.g.f. cos(x/cos(x)) (even powers only).
Expansion of e.g.f. cos(x/cosh(x)) (even powers only).A009119
Expansion of e.g.f. cos(x/cosh(x)) (even powers only).
a(n) = (4*n)!/(2*n)!.A009120
a(n) = (4*n)!/(2*n)!.
Expansion of e.g.f. cosh(exp(x)*x).A009121
Expansion of e.g.f. cosh(exp(x)*x).
Expansion of e.g.f. cosh(log(1+log(1+x))).A009122
Expansion of e.g.f. cosh(log(1+log(1+x))).
Expansion of e.g.f.: cosh(log(1+sin(x))).A009123
Expansion of e.g.f.: cosh(log(1+sin(x))).
Expansion of e.g.f. cosh(log(1+sinh(x))).A009124
Expansion of e.g.f. cosh(log(1+sinh(x))).
Expansion of e.g.f. cosh(log(1+tan(x))).A009125
Expansion of e.g.f. cosh(log(1+tan(x))).
Expansion of e.g.f. cosh(log(1+tanh(x))).A009126
Expansion of e.g.f. cosh(log(1+tanh(x))).
Area of more than one Pythagorean triangle.A009127
Area of more than one Pythagorean triangle.
Expansion of e.g.f. cosh(log(1+x))*cos(x).A009128
Expansion of e.g.f. cosh(log(1+x))*cos(x).
Perimeter of more than one Pythagorean triangle.A009129
Perimeter of more than one Pythagorean triangle.
Expansion of e.g.f. cosh(log(1+x))/cos(x).A009130
Expansion of e.g.f. cosh(log(1+x))/cos(x).
Expansion of e.g.f. cosh(log(1+x))/cosh(x).A009131
Expansion of e.g.f. cosh(log(1+x))/cosh(x).
Expansion of e.g.f. cosh(log(1+x))/exp(x).A009132
Expansion of e.g.f. cosh(log(1+x))/exp(x).
Expansion of e.g.f. cosh(log(1+x)*cos(x)).A009133
Expansion of e.g.f. cosh(log(1+x)*cos(x)).
Expansion of cosh(log(1+x)*cosh(x)).A009134
Expansion of cosh(log(1+x)*cosh(x)).
Expansion of e.g.f. cosh(log(1+x)*exp(x)).A009135
Expansion of e.g.f. cosh(log(1+x)*exp(x)).
Expansion of e.g.f. cosh(x*log(1+x)).A009136
Expansion of e.g.f. cosh(x*log(1+x)).
Expansion of e.g.f. cosh(log(1+x)/cos(x)).A009137
Expansion of e.g.f. cosh(log(1+x)/cos(x)).
Expansion of e.g.f.: cosh(log(1+x)/cosh(x)).A009138
Expansion of e.g.f.: cosh(log(1+x)/cosh(x)).
Expansion of e.g.f. cosh(log(1+x)/exp(x)).A009139
Expansion of e.g.f. cosh(log(1+x)/exp(x)).
Expansion of e.g.f. cosh(log(1+x)^2).A009140
Expansion of e.g.f. cosh(log(1+x)^2).
Expansion of e.g.f. cosh(sin(log(1+x))).A009141
Expansion of e.g.f. cosh(sin(log(1+x))).
Expansion of e.g.f. cosh(sin(sin(x))), even powers only.A009142
Expansion of e.g.f. cosh(sin(sin(x))), even powers only.
Expansion of e.g.f. cosh(sin(tan(x))), even powers only.A009143
Expansion of e.g.f. cosh(sin(tan(x))), even powers only.
Expansion of cosh(sin(x))/cos(x).A009144
Expansion of cosh(sin(x))/cos(x).
Expansion of e.g.f.: cosh(sin(x))/exp(x).A009145
Expansion of e.g.f.: cosh(sin(x))/exp(x).
Expansion of cosh(sin(x)*cos(x)).A009146
Expansion of cosh(sin(x)*cos(x)).
Expansion of e.g.f.: cosh(sin(x)*exp(x)).A009147
Expansion of e.g.f.: cosh(sin(x)*exp(x)).
Expansion of cosh(sin(x)*log(1+x)).A009148
Expansion of cosh(sin(x)*log(1+x)).
Expansion of e.g.f. cosh(sin(x)*x), even powers only.A009149
Expansion of e.g.f. cosh(sin(x)*x), even powers only.
Expansion of e.g.f. cosh(sin(x)^2) (even coefficients).A009150
Expansion of e.g.f. cosh(sin(x)^2) (even coefficients).
Expansion of cosh(sinh(log(1+x))).A009151
Expansion of cosh(sinh(log(1+x))).
Expansion of e.g.f. cosh(sinh(x))/exp(x).A009152
Expansion of e.g.f. cosh(sinh(x))/exp(x).
Expansion of e.g.f. cosh(sinh(x)*exp(x)).A009153
Expansion of e.g.f. cosh(sinh(x)*exp(x)).
E.g.f.: Expansion of cosh(sinh(x)*log(1+x)).A009154
E.g.f.: Expansion of cosh(sinh(x)*log(1+x)).
Expansion of cosh(sinh(x)*sin(x)).A009155
Expansion of cosh(sinh(x)*sin(x)).
Expansion of e.g.f.: cosh(tan(log(1+x))).A009156
Expansion of e.g.f.: cosh(tan(log(1+x))).
Expansion of cosh(tan(sin(x))).A009157
Expansion of cosh(tan(sin(x))).
Expansion of cosh(tan(tan(x))).A009158
Expansion of cosh(tan(tan(x))).
Expansion of cosh(tan(x))*cos(x).A009159
Expansion of cosh(tan(x))*cos(x).
Expansion of cosh(tan(x))/cos(x).A009160
Expansion of cosh(tan(x))/cos(x).