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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.

A357693 Expansion of e.g.f. cos( sqrt(2) * log(1+x) ).

Table of values

n a(n)
0 1
1 0
2 -2
3 6
4 -18
5 60
6 -216
7 756
8 -1620
9 -14256
10 349272
11 -5452920
12 78885576
13 -1143659088
14 17074183104
15 -265437239760
16 4316991698448
17 -73572489226368
18 1314108286270560
19 -24584195654596512
20 481215937895868384
21 -9843358555320333120
22 210128893733994567552

List of values

[1, 0, -2, 6, -18, 60, -216, 756, -1620, -14256, 349272, -5452920, 78885576, -1143659088, 17074183104, -265437239760, 4316991698448, -73572489226368, 1314108286270560, -24584195654596512, 481215937895868384, -9843358555320333120, 210128893733994567552]

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

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