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.

A302967 Number of 4Xn 0..1 arrays with every element equal to 0, 1, 2, 3 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

Table of values

n a(n)
1 8
2 128
3 833
4 6206
5 43588
6 314989
7 2257439
8 16185343
9 116204095
10 833483135
11 5980966891
12 42913914839
13 307909560484
14 2209334749489
15 15852297971877
16 113743491247020
17 816131893706879
18 5855905976037061
19 42017301642505309

List of values

[8, 128, 833, 6206, 43588, 314989, 2257439, 16185343, 116204095, 833483135, 5980966891, 42913914839, 307909560484, 2209334749489, 15852297971877, 113743491247020, 816131893706879, 5855905976037061, 42017301642505309]

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

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