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.

A198901 Number of n X 3 0..4 arrays with values 0..4 introduced in row major order and no element equal to any horizontal or vertical neighbor.

Table of values

n a(n)
1 2
2 33
3 1211
4 50384
5 2125425
6 89793204
7 3794115705
8 160319061892
9 6774239755817
10 286243775060868
11 12095158053422201
12 511077834439270724
13 21595464215307153225
14 912510860892666556164
15 38557914891188891686425

List of values

[2, 33, 1211, 50384, 2125425, 89793204, 3794115705, 160319061892, 6774239755817, 286243775060868, 12095158053422201, 511077834439270724, 21595464215307153225, 912510860892666556164, 38557914891188891686425]

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

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