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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.

A352250 Expansion of e.g.f. 1 / (1 - x * sin(x)) (even powers only).

Table of values

n a(n)
0 1
1 2
2 20
3 486
4 21944
5 1591210
6 169207092
7 24808395262
8 4796420822384
9 1182349445882706
10 361939981107422060
11 134705596642758848806
12 59900689507397744253096
13 31365504832631796986962426
14 19102102945852191813235300004
15 13387748268024668296590660222030

List of values

[1, 2, 20, 486, 21944, 1591210, 169207092, 24808395262, 4796420822384, 1182349445882706, 361939981107422060, 134705596642758848806, 59900689507397744253096, 31365504832631796986962426, 19102102945852191813235300004, 13387748268024668296590660222030]

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

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