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.

A186909 Number of (n+2)X5 0..6 arrays with each 3X3 subblock having rows and columns in lexicographically nondecreasing order.

Table of values

n a(n)
1 1276581035
2 99241308567
3 4813465754996
4 171334955820947
5 4805827783188400
6 110909004238159456
7 2169936652932512523
8 36804096662464163093
9 550615265988952206164
10 7367827886026471340866
11 89189622390253052611607

List of values

[1276581035, 99241308567, 4813465754996, 171334955820947, 4805827783188400, 110909004238159456, 2169936652932512523, 36804096662464163093, 550615265988952206164, 7367827886026471340866, 89189622390253052611607]

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

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