-376

Appears in sequences

• Expansion of log(1+sin(x)*cosh(x)).at n=6A009339
• Expansion of log(1+tanh(x)/cos(x)).at n=6A009400
• Image of Euler totient function (A000010) under "little Hankel" transform that sends [c_0, c_1, ...] to [d_0, d_1, ...] where d_n = c_n^2 - c_{n+1}*c_{n-1}.at n=22A056228
• Triangle of numbers obtained by inverting infinite matrix defined in A059369, read from right to left.at n=42A059370
• Expansion of 1/( (1-x)*(1 + x^2 + x^3) ).at n=41A077889
• Expansion of (1-x)^(-1)/(1+2*x+x^2-x^3).at n=20A077929
• A Chebyshev transform of A099456 associated to the knot 9_44.at n=7A099457
• G.f. satisfies: A(x) = 1/(1 + x*A(x^6)) and also the continued fraction: 1+x*A(x^7) = [1;1/x,1/x^6,1/x^36,1/x^216,...,1/x^(6^(n-1)),...].at n=39A101916
• Triangle, read by rows, equal to the matrix inverse of A056241, which is formed from the even-indexed trinomial coefficients.at n=15A104027
• Expansion of x*(1 - x)/(1 - x + x^2)^3.at n=46A104555
• G.f. A(x) satisfies: A(x) = x/f(x,A(x)) where f(,) is Ramanujan's theta function; i.e., A(x) = x/Sum_{n=-oo,+oo} x^(n*(n+1)/2)*A(x)^(n*(n-1)/2).at n=5A107944
• Expansion of eta(q)/eta(q^5)^5 in powers of q.at n=27A109063
• Expansion of 1 / chi(q)^12 in powers of q where chi() is a Ramanujan theta function.at n=3A124863
• G.f.: (1+x+x^2-sqrt(1+2x+3x^2-2x^3+x^4))*2.at n=13A129507
• Riordan array ((1+x^2)/(1-x)^2, -x/(1-x)^2).at n=41A136672
• A nonsense sequence.at n=17A143044
• A nonsense sequence.at n=16A143050
• Symmetrical triangle sequence from polynomials: q(x,n)=(-1)^n*(Sum[(k + 1)^n*x^k/k, {k, 1, Infinity}] + Log[1 - x])*(x - 1)^n/x; p(x,n)=q(x,n)+x^n*q(1/x,n).at n=24A154989
• Riordan array (1/(1-x^2), x/(1+x)^2).at n=51A158454
• Expansion of 1/((1 + x^3 - x^4)*(1 - x)).at n=39A177825