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.

A302152 Number of 4 X n 0..1 arrays with every element equal to 0, 2, 3 or 4 horizontally or antidiagonally adjacent elements, with upper left element zero.

Table of values

n a(n)
1 8
2 1
3 10
4 17
5 56
6 255
7 1038
8 4771
9 21866
10 102060
11 476499
12 2227609
13 10440370
14 48996354
15 230159202
16 1081764728
17 5086004704
18 23916740145
19 112479869517
20 529026120838
21 2488273643127
22 11703911410284
23 55051772837784

List of values

[8, 1, 10, 17, 56, 255, 1038, 4771, 21866, 102060, 476499, 2227609, 10440370, 48996354, 230159202, 1081764728, 5086004704, 23916740145, 112479869517, 529026120838, 2488273643127, 11703911410284, 55051772837784]

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

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