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.

A233070 Number of nX5 0..3 arrays with no element x(i,j) adjacent to value 3-x(i,j) horizontally, antidiagonally or vertically, top left element zero, and 1 appearing before 2 in row major order.

Table of values

n a(n)
1 41
2 1682
3 80811
4 3957778
5 194998895
6 9622519979
7 475027244071
8 23452561697310
9 1157902539075279
10 57168401542703366
11 2822543431496611477
12 139355894459526629065
13 6880342889895213536639
14 339699437967530482926608

List of values

[41, 1682, 80811, 3957778, 194998895, 9622519979, 475027244071, 23452561697310, 1157902539075279, 57168401542703366, 2822543431496611477, 139355894459526629065, 6880342889895213536639, 339699437967530482926608]

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

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