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.

A275128 Number of nX5 0..2 arrays with no element equal to any value at offset (-2,-2) (-1,0) or (-1,1) and new values introduced in order 0..2.

Table of values

n a(n)
1 41
2 256
3 675
4 2545
5 12423
6 62378
7 315021
8 1591442
9 8024937
10 40445177
11 203778488
12 1026594464
13 5172646773
14 26068048495
15 131374129725
16 662045442417
17 3336258461916
18 16812605674569
19 84724677500065
20 426956397683686

List of values

[41, 256, 675, 2545, 12423, 62378, 315021, 1591442, 8024937, 40445177, 203778488, 1026594464, 5172646773, 26068048495, 131374129725, 662045442417, 3336258461916, 16812605674569, 84724677500065, 426956397683686]

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

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