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.

A268624 Number of n X 4 0..2 arrays with some element plus some horizontally or vertically adjacent neighbor totalling two no more than once.

Table of values

n a(n)
1 60
2 666
3 6300
4 55452
5 467190
6 3819654
7 30553014
8 240364746
9 1866503592
10 14342680944
11 109265781870
12 826421076378
13 6212333663082
14 46453421706210
15 345772280726172
16 2563402622459652
17 18936504080614278
18 139446644995253358

List of values

[60, 666, 6300, 55452, 467190, 3819654, 30553014, 240364746, 1866503592, 14342680944, 109265781870, 826421076378, 6212333663082, 46453421706210, 345772280726172, 2563402622459652, 18936504080614278, 139446644995253358]

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

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