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.

A269284 Number of n X 3 0..3 arrays with some element plus some horizontally or antidiagonally adjacent neighbor totalling three no more than once.

Table of values

n a(n)
1 60
2 2124
3 62748
4 1698732
5 43674876
6 1085203980
7 26317946844
8 626778812268
9 14718495557052
10 341767357185996
11 7863372461151900
12 179542238849355564
13 4073026776304945788
14 91888997272241919372
15 2063133077083679521116

List of values

[60, 2124, 62748, 1698732, 43674876, 1085203980, 26317946844, 626778812268, 14718495557052, 341767357185996, 7863372461151900, 179542238849355564, 4073026776304945788, 91888997272241919372, 2063133077083679521116]

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

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