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.

A209513 Number of (n+1) X 5 0..2 arrays with the number of clockwise edge increases in every 2 X 2 subblock equal to the number of counterclockwise edge increases.

Table of values

n a(n)
1 14739
2 951777
3 62340543
4 4099186545
5 269845393359
6 17769569448759
7 1170258116647953
8 77072446894479573
9 5075985987097377855
10 334304949001956117279
11 22017374591969387056413
12 1450067958051127482119577

List of values

[14739, 951777, 62340543, 4099186545, 269845393359, 17769569448759, 1170258116647953, 77072446894479573, 5075985987097377855, 334304949001956117279, 22017374591969387056413, 1450067958051127482119577]

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

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