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.

A207447 Number of 7Xn 0..1 arrays avoiding 0 0 1 and 0 1 0 horizontally and 0 0 1 and 1 0 0 vertically.

Table of values

n a(n)
1 35
2 1225
3 14743
4 165626
5 2078416
6 24609889
7 284247216
8 3316383098
9 38630942068
10 448234580146
11 5204017590681
12 60440346257235
13 701591767463860
14 8143643192312255
15 94537663920104487
16 1097406693263337001

List of values

[35, 1225, 14743, 165626, 2078416, 24609889, 284247216, 3316383098, 38630942068, 448234580146, 5204017590681, 60440346257235, 701591767463860, 8143643192312255, 94537663920104487, 1097406693263337001]

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

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