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.

A269271 Number of n X 3 0..3 arrays with some element plus some horizontally or antidiagonally adjacent neighbor totalling three exactly once.

Table of values

n a(n)
1 24
2 1368
3 46872
4 1365336
5 36673560
6 938176344
7 23230366488
8 561939624792
9 13356872620056
10 313173275509080
11 7262896745936664
12 166932248829835608
13 3808216985895026712
14 86327991673633618776
15 1946351959512905208600

List of values

[24, 1368, 46872, 1365336, 36673560, 938176344, 23230366488, 561939624792, 13356872620056, 313173275509080, 7262896745936664, 166932248829835608, 3808216985895026712, 86327991673633618776, 1946351959512905208600]

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

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