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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.

A232299 Number of 5Xn 0..2 arrays with every 0 next to a 1 and every 1 next to a 2 horizontally or antidiagonally.

Table of values

n a(n)
1 1
2 1727
3 240241
4 25116353
5 2885285507
6 339565321435
7 39660722273643
8 4626194825153697
9 539876319125367771
10 63007847133734278905
11 7353315697711530754635
12 858164092027643141044841

List of values

[1, 1727, 240241, 25116353, 2885285507, 339565321435, 39660722273643, 4626194825153697, 539876319125367771, 63007847133734278905, 7353315697711530754635, 858164092027643141044841]

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

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