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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.

A081565 Binomial transform of expansion of exp(3cosh(x)).

Table of values

n a(n)
0 1
1 1
2 4
3 10
4 49
5 181
6 1039
7 4915
8 32134
9 182206
10 1330609
11 8706655
12 70012309
13 515822581
14 4517489344
15 36835737130
16 348313165249
17 3103526872081
18 31462900577419
19 303344232041215
20 3277823503679554
21 33930282904263406

List of values

[1, 1, 4, 10, 49, 181, 1039, 4915, 32134, 182206, 1330609, 8706655, 70012309, 515822581, 4517489344, 36835737130, 348313165249, 3103526872081, 31462900577419, 303344232041215, 3277823503679554, 33930282904263406]

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

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