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.

A201536 Number of nX5 0..2 arrays with rows and columns lexicographically nondecreasing and every element equal to at least one horizontal or vertical neighbor.

Table of values

n a(n)
1 9
2 175
3 3354
4 91425
5 2446147
6 61807736
7 1408677515
8 28646055184
9 523398227137
10 8686880778087
11 132361720458239
12 1868645862989467
13 24631940812325029
14 305098771555173655
15 3569810381726216867
16 39630824798203404663

List of values

[9, 175, 3354, 91425, 2446147, 61807736, 1408677515, 28646055184, 523398227137, 8686880778087, 132361720458239, 1868645862989467, 24631940812325029, 305098771555173655, 3569810381726216867, 39630824798203404663]

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

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