-1144
domain: Z
Appears in sequences
- Shifts left when Moebius transformation applied twice.at n=44A007551
- Triangle T(n,k) read by rows: see formula lines for definition.at n=26A097474
- G.f.: (1-2*x)*sqrt(1-4*x).at n=9A126079
- First differences of A138383.at n=34A137174
- a(n) = (-1)^(n+1) * n*(n-1)*(n-4)*(n+1)/12.at n=10A167387
- Expansion of the unique normalized cusp form of Gamma_0(5) of weight 6 in powers of q.at n=38A226347
- Triangle read by rows: T(n,k) appears in the transformation Sum_{k=0..n} (k+1)*x^k = Sum_{k=0..n} T(n,k)*(x+2k)^k.at n=43A253381
- T(n, m), numerators of coefficients in a power/Fourier series expansion of the plane pendulum's exact differential time dependence.at n=27A274076
- Reduced A276850.at n=41A276851
- Expansion of Sum_{k>0} x^(2*k)/(1+x^k)^3.at n=44A363022
- Expansion of Sum_{k>0} (1/(1+x^k)^4 - 1).at n=16A363631
- Dirichlet inverse of the highest power of two that divides sigma(n), applied to A163511(n).at n=33A368694