325521
domain: N
Appears in sequences
- a(n) = (1 - (-5)^n)/6.at n=8A014986
- Gaussian binomial coefficient [ n,8 ] for q=-5.at n=1A015360
- Linear 2nd order recurrence: a(n) = 4*a(n-1) + 5*a(n-2).at n=9A015531
- Expansion of e.g.f. theta_3^(-21/2).at n=4A015695
- a(n) = (5*5^n + (-1)^n)/6.at n=8A083425
- Expansion of (1-4*x-x^2)/((1-x)*(1-4*x-5*x^2)).at n=9A100284
- Square array A(n,k) = (n^(2*k + 1) + 1)/(n + 1), n >= 0, k >= 0, read by antidiagonals.at n=50A362783