-2485

Appears in sequences

• Reversion of g.f. for Fibonacci numbers 1, 1, 2, 3, 5, ....at n=16A007440
• Expansion of Product_{k>=1} (1 - x^k)^15.at n=6A010822
• G.f. A(x) satisfies: 2^n - 1 = Sum_{k=0..n} [x^k]A(x)^n and also satisfies: (2+z)^n - (1+z)^n + z^n = Sum_{k=0..n} [x^k](A(x)+z*x)^n for all z, where [x^k]A(x)^n denotes the coefficient of x^k in A(x)^n.at n=18A100223
• a(-1) = 1 and g.f. A(x) satisfies A(x) - 1/A(x) = 1/x - 1.at n=18A214649
• Nearest integer to n*tan(n).at n=11A274086
• Nearest integer to n*tan(n).at n=33A274086
• Nearest integer to n*tan(n).at n=55A274086
• a(n) = (1/720)*n*(n - 10)*(n - 1)*(n^3 - 34*n^2 + 181*n - 144).at n=15A319932
• Excess of the number of even Motzkin n-paths (A107587) over the odd ones (A343386).at n=16A343773