-871
domain: Z
Appears in sequences
- Expansion of Product_{k>=1} (1 - x^k)^13.at n=6A010820
- Expansion of (1-x)/(1+x^2+x^3).at n=36A078032
- First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 363", based on the 5-celled von Neumann neighborhood.at n=17A268194
- First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 57", based on the 5-celled von Neumann neighborhood.at n=17A270078
- First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 283", based on the 5-celled von Neumann neighborhood.at n=15A271120
- Expansion of 1/(1 + x^2 + x^3/(1 + x^5 + x^7/(1 + x^11 + x^13/(1 + ... + x^prime(2*k)/(1 + x^prime(2*k+1) + ...))))), a continued fraction.at n=46A292801
- Expansion of Product_{k>=1} 1/(1 + x^k)^(k*(3*k-1)/2).at n=13A295086
- a(n) = (1/720)*n*(n - 10)*(n - 1)*(n^3 - 34*n^2 + 181*n - 144).at n=13A319932
- Dirichlet g.f.: 1 / (zeta(s) * zeta(s-1) * zeta(s-2)).at n=28A328254
- G.f.: Sum_{n=-oo..+oo} x^(n*(n+1)/2) * C(x)^(3*n-3), where C(x) = 1 + x*C(x)^2 is the g.f. of the Catalan numbers (A000108).at n=18A355348