A261980 Expansion of (elliptic_K / elliptic_E)^(1/4) in powers of q.

1, 2, -2, -4, 14, 24, -92, -176, 694, 1342, -5480, -10612, 44532, 86408, -369328, -717616, 3109078, 6046724, -26473950, -51523620, 227477656, 442950880, -1969014572, -3835720208, 17147433572, 33415180858, -150096433272, -292574352808, 1319581377424, 2572787175656, -11644937717296

Offset: 0

Author

Joerg Arndt, Sep 07 2015

Keywords

• sign

Crossrefs

Cf. A261975 (E/K), A261977 ((E/K)^(1/2)), A261978 ((E/K)^(1/4)).

Cf. A261976 (K/E), A261979 ((K/E)^(1/2)).

Cf. A004018 (elliptic K(q)), A194094 (elliptic E(q)), A115977 (elliptic k(q)^2).

Formula

See A261976 for the g.f. for K/E.