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.

A274725 Number of nX5 0..2 arrays with no element equal to any value at offset (-1,-2) (-2,-1) or (-1,0) and new values introduced in order 0..2.

Table of values

n a(n)
1 41
2 384
3 1300
4 10368
5 84948
6 687248
7 5634776
8 45990340
9 375845052
10 3070055916
11 25083639844
12 204917982144
13 1674151403908
14 13677241018800
15 111739565720152
16 912879351011812
17 7457971359536024
18 60929501956856368
19 497776886832382136

List of values

[41, 384, 1300, 10368, 84948, 687248, 5634776, 45990340, 375845052, 3070055916, 25083639844, 204917982144, 1674151403908, 13677241018800, 111739565720152, 912879351011812, 7457971359536024, 60929501956856368, 497776886832382136]

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

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