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.

A302949 Number of nX4 0..1 arrays with every element equal to 1, 2, 3, 4 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

Table of values

n a(n)
1 2
2 46
3 519
4 6531
5 80589
6 998670
7 12365841
8 153141597
9 1896492042
10 23486107930
11 290851104799
12 3601890066510
13 44605681284501
14 552395208564836
15 6840843079654058
16 84716763151740480
17 1049129453065059314

List of values

[2, 46, 519, 6531, 80589, 998670, 12365841, 153141597, 1896492042, 23486107930, 290851104799, 3601890066510, 44605681284501, 552395208564836, 6840843079654058, 84716763151740480, 1049129453065059314]

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

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