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.

A146092 Number of n X n arrays of squares of integers with every (n-2)X(n-2) subblock summing to 4 and every element equal to at least one neighbor.

Table of values

n a(n)
4 1
5 235
6 1894
7 5928
8 14762
9 31448
10 59802
11 104420
12 170678
13 264732
14 393518
15 564752
16 786930
17 1069328
18 1422002
19 1855788
20 2382302
21 3013940
22 3763878
23 4646072
24 5675258
25 6866952
26 8237450
27 9803828
28 11583942
29 13596428
30 15860702

List of values

[1, 235, 1894, 5928, 14762, 31448, 59802, 104420, 170678, 264732, 393518, 564752, 786930, 1069328, 1422002, 1855788, 2382302, 3013940, 3763878, 4646072, 5675258, 6866952, 8237450, 9803828, 11583942, 13596428, 15860702]

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

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