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.

A269272 Number of n X 4 0..3 arrays with some element plus some horizontally or antidiagonally adjacent neighbor totalling three exactly once.

Table of values

n a(n)
1 108
2 13896
3 1104264
4 74853576
5 4684312584
6 279339197256
7 16128206816904
8 909870855444936
9 50443519266217224
10 2758864964165996616
11 149253876730080113544
12 8002845140585293252296
13 425920265748436386105864

List of values

[108, 13896, 1104264, 74853576, 4684312584, 279339197256, 16128206816904, 909870855444936, 50443519266217224, 2758864964165996616, 149253876730080113544, 8002845140585293252296, 425920265748436386105864]

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

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