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.

A186171 Number of (n+2)X(n+2) 0..5 arrays with each 3X3 subblock having rows and columns in lexicographically nondecreasing order.

Table of values

n a(n)
1 520017
2 311128593
3 188034884094
4 111203560772547
5 63117570540037053
6 34184079614729409659
7 17695100284866122677270
8 8806300375583656355791730
9 4233722976051532579394137546
10 1964837017618166811806637674433

List of values

[520017, 311128593, 188034884094, 111203560772547, 63117570540037053, 34184079614729409659, 17695100284866122677270, 8806300375583656355791730, 4233722976051532579394137546, 1964837017618166811806637674433]

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

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