login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A156746 Numerator of Euler(n, 1/20). 1
1, -9, -19, 1971, 7961, -1580049, -9560059, 2686469931, 21670511921, -7838281432089, -79034002960099, 34943616861129891, 422806632973239881, -220928651974538628129, -3118693689740162472139, 1880318896105818396109851, 30335009203988869812319841 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

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

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

MATHEMATICA

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

CROSSREFS

For denominators see A009964.

Sequence in context: A177368 A138493 A022513 * A064266 A284053 A205150

Adjacent sequences:  A156743 A156744 A156745 * A156747 A156748 A156749

KEYWORD

sign,frac

AUTHOR

N. J. A. Sloane, Nov 07 2009

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified February 25 02:54 EST 2020. Contains 332217 sequences. (Running on oeis4.)