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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.

A230749 Number of (n+3)X(n+3) 0..2 arrays x(i,j) with each element diagonally or antidiagonally next to at least one element with value (x(i,j)+1) mod 3, and upper left element zero.

Table of values

n a(n)
1 12
2 5544
3 13305708
4 116879941620
5 5769362600920812
6 1504181314566629793432
7 2135728868490621147879828300
8 16459977111484024315408273362622152
9 689468967599129606177339374031370776847408

List of values

[12, 5544, 13305708, 116879941620, 5769362600920812, 1504181314566629793432, 2135728868490621147879828300, 16459977111484024315408273362622152, 689468967599129606177339374031370776847408]

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

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