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.

A286975 Number of n X 4 0..1 arrays with the number of 1's horizontally or vertically adjacent to some 0 two less than the number of 0's adjacent to some 1.

Table of values

n a(n)
1 0
2 30
3 538
4 8270
5 123706
6 1853532
7 27938670
8 424161696
9 6473516290
10 99212813068
11 1525788269640
12 23533226594814
13 363874149524074
14 5638501690692214
15 87539755014915366
16 1361389260565705844
17 21203931694258697402

List of values

[0, 30, 538, 8270, 123706, 1853532, 27938670, 424161696, 6473516290, 99212813068, 1525788269640, 23533226594814, 363874149524074, 5638501690692214, 87539755014915366, 1361389260565705844, 21203931694258697402]

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

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