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.

A206938 Number of 5Xn 0..1 arrays avoiding 0 0 0 horizontally and 0 1 1 vertically.

Table of values

n a(n)
1 20
2 400
3 2791
4 35277
5 418876
6 4293648
7 48992069
8 546661165
9 5986733234
10 66776396560
11 740545952667
12 8196172294413
13 90988669114872
14 1008790342818024
15 11183071288718717
16 124031269447384377
17 1375258070874954382

List of values

[20, 400, 2791, 35277, 418876, 4293648, 48992069, 546661165, 5986733234, 66776396560, 740545952667, 8196172294413, 90988669114872, 1008790342818024, 11183071288718717, 124031269447384377, 1375258070874954382]

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

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