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.

A195277 Number of lower triangles of an n X n integer array with each element differing from all of its vertical and horizontal neighbors by 7 or less and triangles differing by a constant counted only once.

Table of values

n a(n)
1 1
2 225
3 507375
4 11755976175
5 2834518121474625
6 7151051711514319493625
7 189393562987102056163761489375

List of values

[1, 225, 507375, 11755976175, 2834518121474625, 7151051711514319493625, 189393562987102056163761489375]

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

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