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.

A302210 Number of nX6 0..1 arrays with every element equal to 0, 2 or 3 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

Table of values

n a(n)
1 1
2 65
3 22
4 80
5 281
6 1395
7 8756
8 43128
9 234170
10 1294490
11 7086959
12 38970702
13 215045749
14 1186180072
15 6546201483
16 36141119314
17 199545542832
18 1101845565725
19 6084429873748
20 33599148008180
21 185542430499264
22 1024617396401798

List of values

[1, 65, 22, 80, 281, 1395, 8756, 43128, 234170, 1294490, 7086959, 38970702, 215045749, 1186180072, 6546201483, 36141119314, 199545542832, 1101845565725, 6084429873748, 33599148008180, 185542430499264, 1024617396401798]

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

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