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.

A276247 Number of nX7 0..2 arrays with no element equal to any value at offset (-2,-1) (-1,1) or (0,-2) and new values introduced in order 0..2.

Table of values

n a(n)
1 48
2 1944
3 9148
4 115682
5 1423062
6 17450554
7 219977330
8 2780927371
9 35144231606
10 446083313365
11 5668147759489
12 72021229704285
13 915757509022000
14 11646919947937198
15 148122094309974829
16 1883921138963266109

List of values

[48, 1944, 9148, 115682, 1423062, 17450554, 219977330, 2780927371, 35144231606, 446083313365, 5668147759489, 72021229704285, 915757509022000, 11646919947937198, 148122094309974829, 1883921138963266109]

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

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