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.

A302386 Number of 7Xn 0..1 arrays with every element equal to 1, 2, 3 or 4 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

Table of values

n a(n)
1 0
2 1172
3 97160
4 5421003
5 404225195
6 29810775827
7 2195619257236
8 161767569162389
9 11926561967149057
10 879261959837334277
11 64822173992483793756
12 4778918571861830147396
13 352319630303338775663571

List of values

[0, 1172, 97160, 5421003, 404225195, 29810775827, 2195619257236, 161767569162389, 11926561967149057, 879261959837334277, 64822173992483793756, 4778918571861830147396, 352319630303338775663571]

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

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