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.

A275348 Number of nX4 0..2 arrays with no element equal to any value at offset (-2,-1) (-2,1) or (-1,-2) and new values introduced in order 0..2.

Table of values

n a(n)
1 14
2 486
3 1536
4 6156
5 31536
6 175152
7 982152
8 5645376
9 33154200
10 197081664
11 1176717272
12 7054784192
13 42406446716
14 255340091420
15 1538613779712
16 9277198809020
17 55956031182028
18 337589432181096
19 2036924853334720

List of values

[14, 486, 1536, 6156, 31536, 175152, 982152, 5645376, 33154200, 197081664, 1176717272, 7054784192, 42406446716, 255340091420, 1538613779712, 9277198809020, 55956031182028, 337589432181096, 2036924853334720]

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

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