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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A227044 a(n) = Sum_{k>=1} k^(2*n)/(2^k).

Table of values

n a(n)
0 1
1 6
2 150
3 9366
4 1091670
5 204495126
6 56183135190
7 21282685940886
8 10631309363962710
9 6771069326513690646
10 5355375592488768406230
11 5149688839606380769088406
12 5916558242148290945301297750
13 8004451519688336984972255078166
14 12595124129900132067036747870669270

List of values

[1, 6, 150, 9366, 1091670, 204495126, 56183135190, 21282685940886, 10631309363962710, 6771069326513690646, 5355375592488768406230, 5149688839606380769088406, 5916558242148290945301297750, 8004451519688336984972255078166, 12595124129900132067036747870669270]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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