A027654 Zagier's function -J_1(4*n-1).

1, 248, 4119, 33512, 192513, 885480, 3493982, 12288992, 39493539, 117966288, 331534572, 884736744, 2257837845, 5541103056, 13136687601, 30197680312, 67515206970, 147197952744, 313645814923, 654403831496, 1339190286960, 2691907586232, 5321761716339, 10359073015248

Offset

0,2

References

M. Kaneko, The Fourier coefficients and the singular moduli of the elliptic modular function j(tau), Memoirs Faculty Engin. Sci., Kyoto Inst. Technology, 44 (March 1996), pp. 1-5.

M. Kaneko, Fourier coefficients of the elliptic modular function j(tau) (in Japanese), Rokko Lectures in Mathematics 10, Dept. Math., Faculty of Science, Kobe University, Rokko, Kobe, Japan, 2001.

Links

Seiichi Manyama, Table of n, -J_1(4*n-1) for n = 0..5000 (terms 0..500 from N. J. A. Sloane)

Formula

a(n) ~ exp(2*Pi*sqrt(n)). - Vaclav Kotesovec, Oct 06 2019

Crossrefs

Cf. A027652, A027653, A027655.

Sequence in context: A121732 A028525 A135046 * A003916 A007245 A327959

Adjacent sequences: A027651 A027652 A027653 * A027655 A027656 A027657

Keyword

nonn

Author

N. J. A. Sloane

Extensions

Entry revised by N. J. A. Sloane, Jul 25 2006

Status

approved