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.

A194611 Half the number of lower triangles of an (n+1) X (n+1) 0..4 array with no element equal to the average of its horizontal and vertical neighbors.

Table of values

n a(n)
1 36
2 3638
3 1674043
4 3703163910
5 38969955227338
6 1946585305112431165
7 461761593540314858209528
8 520265339158575595235640177020

List of values

[36, 3638, 1674043, 3703163910, 38969955227338, 1946585305112431165, 461761593540314858209528, 520265339158575595235640177020]

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

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