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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.

A231273 Numerator of zeta(4n)/(zeta(2n) * Pi^(2n)).

Table of values

n a(n)
0 1
1 1
2 1
3 691
4 3617
5 174611
6 236364091
7 3392780147
8 7709321041217
9 26315271553053477373
10 261082718496449122051
11 2530297234481911294093
12 5609403368997817686249127547
13 61628132164268458257532691681
14 354198989901889536240773677094747

List of values

[1, 1, 1, 691, 3617, 174611, 236364091, 3392780147, 7709321041217, 26315271553053477373, 261082718496449122051, 2530297234481911294093, 5609403368997817686249127547, 61628132164268458257532691681, 354198989901889536240773677094747]

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

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