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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.

A214534 Number of nXnXn triangular 0..2 arrays with no element lying outside the (possibly reversed) range delimited by its sw and se neighbors, and every horizontal row having the same average value.

Table of values

n a(n)
1 3
2 5
3 15
4 93
5 1007
6 17213
7 461465
8 19166997
9 1246538209
10 126946385993
11 20342860627393
12 5148359000639457

List of values

[3, 5, 15, 93, 1007, 17213, 461465, 19166997, 1246538209, 126946385993, 20342860627393, 5148359000639457]

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

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