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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.

A214902 Number of nXnXn triangular 0..4 arrays with every horizontal row nondecreasing and having the same average value.

Table of values

n a(n)
1 5
2 9
3 29
4 182
5 1802
6 29162
7 657722
8 21063242
9 892354322
10 48771558002
11 3355941877202
12 288300261981602
13 29970020819138402
14 3775596638574103202
15 566303743347081854402
16 100233490058027413401602

List of values

[5, 9, 29, 182, 1802, 29162, 657722, 21063242, 892354322, 48771558002, 3355941877202, 288300261981602, 29970020819138402, 3775596638574103202, 566303743347081854402, 100233490058027413401602]

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

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