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.

A198714 Number of nX7 0..3 arrays with values 0..3 introduced in row major order and no element equal to any horizontal or vertical neighbor.

Table of values

n a(n)
1 122
2 58825
3 28609241
4 13925032958
5 6778819400772
6 3300094936852775
7 1606578861528554441
8 782129027546108478208
9 380763168247444298026697
10 185366606445710896112671190
11 90241867886483759053800200221

List of values

[122, 58825, 28609241, 13925032958, 6778819400772, 3300094936852775, 1606578861528554441, 782129027546108478208, 380763168247444298026697, 185366606445710896112671190, 90241867886483759053800200221]

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

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