43988
domain: N
Appears in sequences
- Numerators of continued fraction convergents to sqrt(786).at n=2A042514
- Numbers k such that k and k^2 use only the digits 1, 3, 4, 8 and 9.at n=19A137031
- a(n) = n*(2*n^2 + 3), n >= 1; a(0)=1.at n=28A288534
- Inverse Euler Transform of the Motzkin Numbers.at n=13A290277
- a(n) = Sum_{k=0..n} binomial(n,k) * binomial(5*k,k) / (4*k + 1).at n=6A346647
- E.g.f.: Product_{k>=1} (1 + x^k)^exp(-x).at n=8A347916