A156746 Numerator of Euler(n, 1/20).

1, -9, -19, 1971, 7961, -1580049, -9560059, 2686469931, 21670511921, -7838281432089, -79034002960099, 34943616861129891, 422806632973239881, -220928651974538628129, -3118693689740162472139, 1880318896105818396109851, 30335009203988869812319841

Offset: 0

Author

N. J. A. Sloane, Nov 07 2009

Keywords

• sign
• frac

Links

• T. D. Noe, Table of n, a(n) for n = 0..100

Crossrefs

For denominators see A009964.

Programs

Mathematica

Numerator[EulerE[Range[0,20],1/20]] (* Harvey P. Dale, Oct 13 2017 *)

Formula

G.f.: conjecture T(0)/(1+9*x), where T(k) = 1 - 100*x^2*(k+1)^2/(100*x^2*(k+1)^2 + (1+ 9*x)^2/T(k+1) ); (continued fraction). - Sergei N. Gladkovskii, Nov 12 2013