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.

A207389 Number of n X 6 0..1 arrays avoiding 0 0 1 and 0 1 0 horizontally and 0 0 1 and 1 1 0 vertically.

Table of values

n a(n)
1 21
2 441
3 2307
4 7561
5 19319
6 42167
7 82477
8 148743
9 251937
10 405885
11 627663
12 938013
13 1361779
14 1928363
15 2672201
16 3633259
17 4857549
18 6397665
19 8313339
20 10672017
21 13549455
22 17030335
23 21208901
24 26189615
25 32087833
26 39030501
27 47156871
28 56619237

List of values

[21, 441, 2307, 7561, 19319, 42167, 82477, 148743, 251937, 405885, 627663, 938013, 1361779, 1928363, 2672201, 3633259, 4857549, 6397665, 8313339, 10672017, 13549455, 17030335, 21208901, 26189615, 32087833, 39030501, 47156871, 56619237]

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

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