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.

A208015 Number of 5 X n 0..1 arrays avoiding 0 0 0 and 1 0 1 horizontally and 0 0 1 and 0 1 1 vertically.

Table of values

n a(n)
1 12
2 144
3 420
4 1943
5 5952
6 16224
7 55624
8 181192
9 545140
10 1737120
11 5591900
12 17461000
13 55016920
14 175036148
15 552196708
16 1741059012
17 5511897568
18 17422085700
19 55006038672
20 173881945232
21 549639384692
22 1736473292204
23 5487493400532

List of values

[12, 144, 420, 1943, 5952, 16224, 55624, 181192, 545140, 1737120, 5591900, 17461000, 55016920, 175036148, 552196708, 1741059012, 5511897568, 17422085700, 55006038672, 173881945232, 549639384692, 1736473292204, 5487493400532]

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

Content is available under The OEIS End-User License Agreement.