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.

A269191 Number of nX5 0..3 arrays with some element plus some horizontally, diagonally, antidiagonally or vertically adjacent neighbor totalling three no more than once.

Table of values

n a(n)
1 756
2 27684
3 1399612
4 67134380
5 3159954052
6 145995171708
7 6648192704604
8 299224791093196
9 13339889117822420
10 590022908205332548
11 25923065488446232140
12 1132469284935764232244
13 49229470523358865713156

List of values

[756, 27684, 1399612, 67134380, 3159954052, 145995171708, 6648192704604, 299224791093196, 13339889117822420, 590022908205332548, 25923065488446232140, 1132469284935764232244, 49229470523358865713156]

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

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