A014806 Expansion of Jacobi theta constant (theta_2/2)^20.

1, 20, 190, 1160, 5225, 18924, 58350, 158840, 391020, 886540, 1877676, 3753640, 7140485, 13014240, 22846170, 38794448, 63969485, 102744780, 161143180, 247386480, 372472353, 550858280, 801535160, 1148976360, 1624208445, 2266848372, 3126467670, 4264095520

Offset

0,2

Links

Seiichi Manyama, Table of n, a(n) for n = 0..10000

Formula

a(0) = 1, a(n) = (20/n)*Sum_{k=1..n} A002129(k)*a(n-k) for n > 0. - Seiichi Manyama, May 06 2017

Crossrefs

Column k=20 of A286180.

Cf. A002129, A010054.

Sequence in context: A367780 A047645 A010936 * A022615 A171075 A061180

Adjacent sequences: A014803 A014804 A014805 * A014807 A014808 A014809

Keyword

nonn

Author

N. J. A. Sloane

Extensions

More terms from Seiichi Manyama, May 06 2017

Status

approved