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.

A203402 Number of (n+2)X5 binary arrays avoiding patterns 000 and 111 in rows and columns.

Table of values

n a(n)
1 1260
2 9484
3 60232
4 408432
5 2699464
6 18021052
7 119835492
8 798096928
9 5312099836
10 35365379640
11 235424061980
12 1567252060568
13 10433278592944
14 69455257693892
15 462368804232804
16 3078026001264048
17 20490657892306776
18 136407916635389280

List of values

[1260, 9484, 60232, 408432, 2699464, 18021052, 119835492, 798096928, 5312099836, 35365379640, 235424061980, 1567252060568, 10433278592944, 69455257693892, 462368804232804, 3078026001264048, 20490657892306776, 136407916635389280]

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

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