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.

A222364 Number of nX1 0..2 arrays with no more than floor(nX1/2) elements unequal to at least one king-move neighbor, with new values introduced in row major 0..2 order.

Table of values

n a(n)
1 1
2 1
3 1
4 4
5 5
6 14
7 17
8 70
9 89
10 326
11 413
12 1630
13 2089
14 8058
15 10349
16 40598
17 52385
18 204914
19 265061
20 1041934
21 1351369
22 5315674
23 6908045
24 27228710
25 35450225
26 139873618
27 182386933
28 720480478
29 940751513
30 3719466954
31 4862439261
32 19240428310

List of values

[1, 1, 1, 4, 5, 14, 17, 70, 89, 326, 413, 1630, 2089, 8058, 10349, 40598, 52385, 204914, 265061, 1041934, 1351369, 5315674, 6908045, 27228710, 35450225, 139873618, 182386933, 720480478, 940751513, 3719466954, 4862439261, 19240428310]

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

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