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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.

A082307 Expansion of e.g.f. (1+x)*exp(3*x)*cosh(x).

Table of values

n a(n)
0 1
1 4
2 16
3 66
4 280
5 1208
6 5248
7 22816
8 98944
9 427392
10 1838080
11 7870976
12 33568768
13 142637056
14 604045312
15 2550276096
16 10737713152
17 45097779200
18 188979871744
19 790276734976
20 3298540650496
21 13743907405824
22 57174629810176

List of values

[1, 4, 16, 66, 280, 1208, 5248, 22816, 98944, 427392, 1838080, 7870976, 33568768, 142637056, 604045312, 2550276096, 10737713152, 45097779200, 188979871744, 790276734976, 3298540650496, 13743907405824, 57174629810176]

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

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