cp's OEIS Frontend

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.

A361549 a(n) = A361540(n,2) for n >= 2, a column of triangle A361540.

Table of values

n a(n)
2 1
3 18
4 426
5 12040
6 401355
7 15456756
8 676130644
9 33151425840
10 1802216703285
11 107652497473180
12 7012494336544686
13 494963689847333928
14 37648456802884402111
15 3071415347513049808740
16 267644521958509484952360
17 24822151072519637091258976
18 2442314922307988498911793385

List of values

[1, 18, 426, 12040, 401355, 15456756, 676130644, 33151425840, 1802216703285, 107652497473180, 7012494336544686, 494963689847333928, 37648456802884402111, 3071415347513049808740, 267644521958509484952360, 24822151072519637091258976, 2442314922307988498911793385]

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

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