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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.

A014940 a(1)=1, a(n) = n*22^(n-1) + a(n-1).

Table of values

n a(n)
1 1
2 45
3 1497
4 44089
5 1215369
6 32137161
7 825796489
8 20780659593
9 514663521417
10 12587355699337
11 304746506405001
12 7316566123340937
13 174431600326980745
14 4133772410690139273
15 97461091512107447433
16 2287542179758700278921
17 53480687617522807714953
18 1245979840167792604460169

List of values

[1, 45, 1497, 44089, 1215369, 32137161, 825796489, 20780659593, 514663521417, 12587355699337, 304746506405001, 7316566123340937, 174431600326980745, 4133772410690139273, 97461091512107447433, 2287542179758700278921, 53480687617522807714953, 1245979840167792604460169]

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

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