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.

A275140 Number of n X 6 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 16
2 432
3 1216
4 6464
5 32384
6 165568
7 841536
8 4283968
9 21800000
10 110943552
11 564600384
12 2873300800
13 14622480448
14 74415076672
15 378704836160
16 1927261993792
17 9808004727872
18 49913793159488
19 254015655387712
20 1292707868694336

List of values

[16, 432, 1216, 6464, 32384, 165568, 841536, 4283968, 21800000, 110943552, 564600384, 2873300800, 14622480448, 74415076672, 378704836160, 1927261993792, 9808004727872, 49913793159488, 254015655387712, 1292707868694336]

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

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