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.

A300807 Number of nX4 0..1 arrays with every element equal to 0, 1, 2, 3 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.

Table of values

n a(n)
1 8
2 108
3 1004
4 9504
5 90980
6 872495
7 8363710
8 80174942
9 768542846
10 7367167560
11 70620793761
12 676962861970
13 6489288003156
14 62205568978236
15 596295430879394
16 5716019441254447
17 54793105139432783
18 525240405862663157

List of values

[8, 108, 1004, 9504, 90980, 872495, 8363710, 80174942, 768542846, 7367167560, 70620793761, 676962861970, 6489288003156, 62205568978236, 596295430879394, 5716019441254447, 54793105139432783, 525240405862663157]

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

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