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.

A183817 1/81 the number of (n+1)X7 0..2 arrays with no 2X2 subblock being a reflection across the shared element pair of any horizontal or vertical neighbor.

Table of values

n a(n)
1 32768
2 26630220
3 20864057480
4 16607782066704
5 13143529051807800
6 10425296660739253420

List of values

[32768, 26630220, 20864057480, 16607782066704, 13143529051807800, 10425296660739253420]

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

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