OFFSET
1,3
LINKS
M. Kaneko and D. Zagier, Supersingular j-invariants, hypergeometric series and Atkin's orthogonal polynomials, pp. 97-126 of D. A. Buell and J. T. Teitelbaum, eds., Computational Perspectives on Number Theory, Amer. Math. Soc., 1998
FORMULA
See Maple code for formula.
EXAMPLE
1008, 421344, 901254816/5, 77507914176, 33392993024160, 14400272882673216, 80771130598914068544/13, ...
MAPLE
af:=proc(a, n) mul(a+i, i=0..n-1); end; A1728:=n->-12^(3*n+1)*af(-1/12, n)*af(7/12, n)/(2*n-1)!;
CROSSREFS
KEYWORD
nonn,frac
AUTHOR
N. J. A. Sloane, Feb 28 2009
STATUS
approved