[seqfan] Impressive A160972

[peter.luschny]

Impressive A160972,
Title:

"Denominators of constant terms of Fourier series
of meromorphic modular forms E_k/Delta, where E_k
is the normalized k th Eisenstein series
[cf. Serre reference] and Delta is the normalized
unique weight- twelve cusp form for the full modular
group (the generating function of Ramanujan's tau
function.)"

So my humble question is: Are, for n > 1, the ...

denominators of constant terms of Fourier series
of meromorphic modular forms E_k/Delta, where E_k
is the normalized k th Eisenstein series
[cf. Serre reference] and Delta is the normalized
unique weight- twelve cusp form for the full modular
group (the generating function of Ramanujan's tau
function.)

... abs(B(2n)/2n) ?

Cheers Peter