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.

A188504 Number of nX5 binary arrays without the pattern 0 1 0 diagonally, vertically or horizontally.

Table of values

n a(n)
1 21
2 441
3 4351
4 35079
5 317751
6 3121877
7 30288308
8 288040928
9 2737303569
10 26117921403
11 249374820339
12 2379330844064
13 22697020589721
14 216539527325714
15 2065979971938958
16 19710827779239843
17 188052454261718490

List of values

[21, 441, 4351, 35079, 317751, 3121877, 30288308, 288040928, 2737303569, 26117921403, 249374820339, 2379330844064, 22697020589721, 216539527325714, 2065979971938958, 19710827779239843, 188052454261718490]

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

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