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.

A233146 Number of nX7 0..5 arrays with no element x(i,j) adjacent to value 5-x(i,j) horizontally, antidiagonally or vertically, top left element zero, and 1 appearing before 2 3 and 4, and 2 appearing before 3 in row major order.

Table of values

n a(n)
1 2136
2 20726079
3 231058112982
4 2582927810338210
5 28884899976580380572
6 323040050513644831673711
7 3612824935976380302597462081
8 40405307424531049882937388071029
9 451887251397949341093459133981852269

List of values

[2136, 20726079, 231058112982, 2582927810338210, 28884899976580380572, 323040050513644831673711, 3612824935976380302597462081, 40405307424531049882937388071029, 451887251397949341093459133981852269]

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

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