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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.

A281788 a(n) = (A013967(n) - A037945(n))/174611.

Table of values

n a(n)
1 0
2 3
3 6656
4 1574235
5 109234176
6 3489819540
7 65281655808
8 825351571995
9 7736349470720
10 57270269768634
11 350259092774400
12 1829670576438068
13 8372440970643456
14 34226453991167880
15 126958657929489408
16 432721923827171355
17 1369171676955783168
18 4056082931864408991
19 11330441127202890240
20 30026115193307387658
21 75874353000273633280
22 183636989491548765276

List of values

[0, 3, 6656, 1574235, 109234176, 3489819540, 65281655808, 825351571995, 7736349470720, 57270269768634, 350259092774400, 1829670576438068, 8372440970643456, 34226453991167880, 126958657929489408, 432721923827171355, 1369171676955783168, 4056082931864408991, 11330441127202890240, 30026115193307387658, 75874353000273633280, 183636989491548765276]

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

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