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.

A302876 Number of nX7 0..1 arrays with every element equal to 0, 1, 3, 4 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

Table of values

n a(n)
1 21
2 363
3 722
4 5871
5 41498
6 359518
7 3780984
8 44888558
9 569313013
10 7621363641
11 104570444900
12 1454457203293
13 20411212109809
14 287723152198003
15 4065886450724385
16 57544773261064748
17 815093693449992494

List of values

[21, 363, 722, 5871, 41498, 359518, 3780984, 44888558, 569313013, 7621363641, 104570444900, 1454457203293, 20411212109809, 287723152198003, 4065886450724385, 57544773261064748, 815093693449992494]

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

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