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.

A207218 Number of nX5 0..2 arrays avoiding the pattern z z+1 z in any row or column.

Table of values

n a(n)
1 191
2 36481
3 4916282
4 647820815
5 86510224720
6 11574609426324
7 1547869995556777
8 206971107381598775
9 27675336707209804335
10 3700661206901289737538
11 494840604949963261796095
12 66168472883795299046655248

List of values

[191, 36481, 4916282, 647820815, 86510224720, 11574609426324, 1547869995556777, 206971107381598775, 27675336707209804335, 3700661206901289737538, 494840604949963261796095, 66168472883795299046655248]

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

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