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.

A184473 1/6 the number of (n+2)X7 0..2 arrays with each 3X3 subblock containing one of one value, four of another, and four of the last.

Table of values

n a(n)
1 45585
2 62213
3 86575
4 127689
5 247879
6 520289
7 1219455
8 3727073
9 11454631
10 35847321
11 132023695
12 462435665
13 1581583095
14 6139850633
15 22407327775
16 78976349889
17 312058001959
18 1156657902329
19 4125792115215
20 16415153428433

List of values

[45585, 62213, 86575, 127689, 247879, 520289, 1219455, 3727073, 11454631, 35847321, 132023695, 462435665, 1581583095, 6139850633, 22407327775, 78976349889, 312058001959, 1156657902329, 4125792115215, 16415153428433]

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

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