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.

A280854 Number of n X 3 0..2 arrays with no element equal to more than one of its king-move neighbors and with new values introduced in order 0 sequentially upwards.

Table of values

n a(n)
1 4
2 29
3 46
4 96
5 256
6 678
7 1698
8 4358
9 11218
10 28650
11 73354
12 188066
13 481554
14 1233194
15 3159018
16 8091050
17 20722730
18 53077762
19 135947682
20 348198514
21 891836994
22 2284251018
23 5850611770
24 14985083066
25 38381073050
26 98304843826
27 251786685106

List of values

[4, 29, 46, 96, 256, 678, 1698, 4358, 11218, 28650, 73354, 188066, 481554, 1233194, 3159018, 8091050, 20722730, 53077762, 135947682, 348198514, 891836994, 2284251018, 5850611770, 14985083066, 38381073050, 98304843826, 251786685106]

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

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