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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.

A214379 Number of nXnXn triangular 0..3 arrays with no element lying outside the (possibly reversed) range delimited by its sw and se neighbors, and no element equal to its horizontal neighbors.

Table of values

n a(n)
1 4
2 32
3 456
4 11048
5 445024
6 29456216
7 3183854216
8 560099178288
9 160085922224504
10 74273794007636336
11 55915904574400617168
12 68294422849744215469224

List of values

[4, 32, 456, 11048, 445024, 29456216, 3183854216, 560099178288, 160085922224504, 74273794007636336, 55915904574400617168, 68294422849744215469224]

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

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