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.

A268737 Number of nX5 binary arrays with some 1 horizontally or vertically adjacent to some other 1 exactly once.

Table of values

n a(n)
1 10
2 145
3 1788
4 19591
5 200204
6 1971414
7 18847982
8 176668038
9 1629738420
10 14851460143
11 133983018272
12 1198816726867
13 10652116047394
14 94092052069550
15 826903484125628
16 7234834159717064
17 63053215344757166
18 547626807437714177

List of values

[10, 145, 1788, 19591, 200204, 1971414, 18847982, 176668038, 1629738420, 14851460143, 133983018272, 1198816726867, 10652116047394, 94092052069550, 826903484125628, 7234834159717064, 63053215344757166, 547626807437714177]

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

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