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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.

A377965 Expansion of e.g.f. (1+x)^2 * exp(x*(1+x)^2).

Table of values

n a(n)
0 1
1 3
2 11
3 55
4 309
5 1931
6 13543
7 101991
8 828425
9 7192819
10 66002691
11 639830423
12 6510397501
13 69266297595
14 768989536799
15 8876171274631
16 106301772962193
17 1318277355041891
18 16892429768517115
19 223330116792810999
20 3041570471301007301
21 42611228176879105003

List of values

[1, 3, 11, 55, 309, 1931, 13543, 101991, 828425, 7192819, 66002691, 639830423, 6510397501, 69266297595, 768989536799, 8876171274631, 106301772962193, 1318277355041891, 16892429768517115, 223330116792810999, 3041570471301007301, 42611228176879105003]

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

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