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A013975 Modular form of level 4 and weight 1/2. 1
1, 0, 0, 0, 6, 504, 0, 0, 143388, 565760, 0, 0, 18473000, 51180024, 0, 0, 818626500, 1912896000, 0, 0, 20556578700, 43222528000, 0, 0, 357139677440, 697599931392, 0, 0, 4764286992816, 8806299845112, 0, 0, 51954490735875, 91956846489088, 0, 0 (list; graph; refs; listen; history; text; internal format)
OFFSET

-4,5

LINKS

Table of n, a(n) for n=-4..31.

R. E. Borcherds, Automorphic forms on O_{s+2,2}(R)^{+} and generalized Kac-Moody algebras, pp. 744-752 of Proc. Intern. Congr. Math., Vol. 2, 1994.

FORMULA

(j(4z)-852)*theta_3(z)-2*KZ(z)*E6(4z)/del_12(4z) where KZ(z) is the cusp form of weight 1 3/2 given by A054891, del_12(z) is the unique cusp form of weight 12.

Formula and more terms from Kok Seng Chua (chuaks(AT)ihpc.nus.edu.sg), Jan 11 2001

CROSSREFS

Sequence in context: A123278 A127605 A278775 * A272094 A103520 A223050

Adjacent sequences:  A013972 A013973 A013974 * A013976 A013977 A013978

KEYWORD

nonn

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified October 22 17:29 EDT 2019. Contains 328319 sequences. (Running on oeis4.)