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.

A301445 Number of nX3 0..1 arrays with every element equal to 0, 1, 2, 3, 5 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.

Table of values

n a(n)
1 4
2 29
3 171
4 1008
5 5930
6 34976
7 206266
8 1216562
9 7175157
10 42318566
11 249591629
12 1472072549
13 8682172154
14 51206792942
15 302013780922
16 1781254373986
17 10505703200049
18 61961840678551
19 365446236883416
20 2155374188205965

List of values

[4, 29, 171, 1008, 5930, 34976, 206266, 1216562, 7175157, 42318566, 249591629, 1472072549, 8682172154, 51206792942, 302013780922, 1781254373986, 10505703200049, 61961840678551, 365446236883416, 2155374188205965]

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

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