-1384
domain: Z
Appears in sequences
- McKay-Thompson series of class 3B for the Monster group.at n=6A007244
- Expansion of e.g.f. tanh(x)*exp(x).at n=8A009832
- E.g.f.: sin(cos(x)-sech(x)) (even powers only).at n=4A013483
- arcsin(cos(x)-sech(x))=-4/4!*x^4+60/6!*x^6-1384/8!*x^8+50520/10!*x^10...at n=2A013484
- tan(cos(x)-sech(x))=-4/4!*x^4+60/6!*x^6-1384/8!*x^8+50520/10!*x^10...at n=2A013485
- arctan(cos(x)-sech(x))=-4/4!*x^4+60/6!*x^6-1384/8!*x^8+50520/10!*x^10...at n=2A013486
- McKay-Thompson series of class 3B for the Monster group with a(0) = -12.at n=6A030182
- McKay-Thompson series of class 3B for the Monster group with a(0) = -3.at n=6A045481
- McKay-Thompson series of class 8D for the Monster group.at n=21A112143
- McKay-Thompson series of class 16c for the Monster group.at n=21A112152
- Expansion of Product_{n>=0} (1 + q*(-q^2)^n) / (1 - q*(-q^2)^n).at n=69A193863
- q-expansion of modular form t_{3B}.at n=6A198955
- Expansion of 1/(1 - Sum_{k>=1} lambda(k)*x^k), where lambda() is the Liouville function (A008836).at n=26A307076
- a(n) = Sum_{k=1..n} floor(n/k) * (-2)^(k-1).at n=11A344817