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.

A232291 Number of nX4 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 15
2 587
3 20563
4 718483
5 25116353
6 877968487
7 30690409685
8 1072818688305
9 37501616113029
10 1310912294899905
11 45824453004106979
12 1601846669127816785
13 55994400002283842181
14 1957348909882095004225
15 68421391333068584221039

List of values

[15, 587, 20563, 718483, 25116353, 877968487, 30690409685, 1072818688305, 37501616113029, 1310912294899905, 45824453004106979, 1601846669127816785, 55994400002283842181, 1957348909882095004225, 68421391333068584221039]

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

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