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 A056949 J(1)*theta3(z) where J(1) is the series given by A056948. 2
 1, 2, 0, -2, 24, 52, 0, 32556, 195984, 261626, 0, 3736682, 16779168, 18348900, 0, 103018596, 397998672, 376729140, 0, 1334328534, 4629497040, 3937811168, 0, 10792678852, 34417510848, 26962705262, 0, 62783490188, 187489533504, 138066125924, 0, 287105737648, 814881802320 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 COMMENTS a(4n) gives the series A056948(n). It seems only a(3) is negative. What are a(4n+1), a(4n+3)? REFERENCES Eichler and Zagier, The Theory of Jacobi form, Birkhauser, 1985 LINKS FORMULA (E_8*E_{4, 1}-56*E_{12, 1})*theta_3(z) CROSSREFS Cf. A056947, A056948. Sequence in context: A077183 A101030 A093857 * A281326 A012622 A013370 Adjacent sequences:  A056946 A056947 A056948 * A056950 A056951 A056952 KEYWORD sign AUTHOR Kok Seng Chua (chuaks(AT)ihpc.nus.edu.sg), Jul 17 2000 STATUS approved

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Last modified November 28 20:57 EST 2020. Contains 338755 sequences. (Running on oeis4.)