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.

A275144 Number of 4 X n 0..2 arrays with no element equal to any value at offset (-2,-2) (-1,-2) or (0,-1) and new values introduced in order 0..2.

Table of values

n a(n)
1 14
2 216
3 400
4 1088
5 2320
6 6464
7 17872
8 49792
9 139664
10 392448
11 1102416
12 3095808
13 8693584
14 24414784
15 68567696
16 192568832
17 540817040
18 1518847552
19 4265581328
20 11979603776
21 33643929040
22 94486756224
23 265359817104
24 745245528576

List of values

[14, 216, 400, 1088, 2320, 6464, 17872, 49792, 139664, 392448, 1102416, 3095808, 8693584, 24414784, 68567696, 192568832, 540817040, 1518847552, 4265581328, 11979603776, 33643929040, 94486756224, 265359817104, 745245528576]

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

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