1,4

Table of n, a(n) for n=1..76.

A. Pacetti and F. Rodriguez Villegas, Computing weight two modular forms of level p^2, Math. Comp. 74 (2004), 1545-1557. See Table 1.

with(numtheory); L:=legendre; f:=p->(p+5)/12 + (1-L(-3, p))/3-(1-L(2, p))/2;

Cf. A002143.

Sequence in context: A101290 A080605 A130823 * A077886 A096015 A046702

Adjacent sequences: A101432 A101433 A101434 * A101436 A101437 A101438

nonn

N. J. A. Sloane, Nov 29 2006

approved