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.

A302960 Number of nX3 0..1 arrays with every element equal to 0, 1, 2, 3 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

Table of values

n a(n)
1 4
2 29
3 154
4 833
5 4527
6 24602
7 133757
8 727293
9 3954552
10 21502829
11 116922075
12 635766762
13 3457004649
14 18797598113
15 102212699104
16 555785781065
17 3022108386151
18 16432841038810
19 89354263698021
20 485867567617493

List of values

[4, 29, 154, 833, 4527, 24602, 133757, 727293, 3954552, 21502829, 116922075, 635766762, 3457004649, 18797598113, 102212699104, 555785781065, 3022108386151, 16432841038810, 89354263698021, 485867567617493]

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

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