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.

A293103 Number of 4 X n 0..1 arrays with the number of 1's horizontally, diagonally or antidiagonally 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
3 554
4 8088
5 114318
6 1676740
7 24773296
8 370085158
9 5573917456
10 84505086146
11 1288142241806
12 19723300256104
13 303110117057606
14 4672886017374940
15 72233860901133456
16 1119204087096130496
17 17376470515536487116

List of values

[0, 30, 554, 8088, 114318, 1676740, 24773296, 370085158, 5573917456, 84505086146, 1288142241806, 19723300256104, 303110117057606, 4672886017374940, 72233860901133456, 1119204087096130496, 17376470515536487116]

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

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