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.

A208172 Number of nX5 0..3 arrays with new values 0..3 introduced in row major order and no element equal to more than one of its immediate leftward or upward neighbors.

Table of values

n a(n)
1 51
2 33831
3 26625693
4 21002874867
5 16567902881244
6 13069424064243420
7 10309684155118737894
8 8132690993759302714128
9 6415391762234363693863872
10 5060717478941101906268770749
11 3992096250836003074558657203441

List of values

[51, 33831, 26625693, 21002874867, 16567902881244, 13069424064243420, 10309684155118737894, 8132690993759302714128, 6415391762234363693863872, 5060717478941101906268770749, 3992096250836003074558657203441]

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

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