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.

A302283 Number of 6 X n 0..1 arrays with every element equal to 1, 2 or 4 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

Table of values

n a(n)
1 0
2 162
3 942
4 941
5 3854
6 15862
7 72083
8 229708
9 713848
10 2948380
11 12041624
12 42878033
13 150037123
14 568430873
15 2213341390
16 8198208076
17 29843299672
18 111484320586
19 422946390276
20 1581927104188
21 5856632633328
22 21841388005545
23 82061911191197

List of values

[0, 162, 942, 941, 3854, 15862, 72083, 229708, 713848, 2948380, 12041624, 42878033, 150037123, 568430873, 2213341390, 8198208076, 29843299672, 111484320586, 422946390276, 1581927104188, 5856632633328, 21841388005545, 82061911191197]

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

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