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.

A207661 T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 0 and 1 1 1 horizontally and 0 0 1 and 1 0 0 vertically.

Table of values

n a(n)
1 2
2 4
3 4
4 6
5 16
6 6
7 10
8 36
9 36
10 9
11 16
12 100
13 84
14 81
15 14
16 26
17 256
18 292
19 198
20 196
21 22
22 42
23 676
24 912
25 870
26 474
27 484
28 35
29 68
30 1764
31 2812
32 3358
33 2774
34 1140
35 1225
36 56
37 110
38 4624
39 8928
40 12040
41 13902
42 9060
43 2748
44 3136
45 90
46 178
47 12100
48 28152
49 47320
50 55752
51 60762
52 30440

List of values

[2, 4, 4, 6, 16, 6, 10, 36, 36, 9, 16, 100, 84, 81, 14, 26, 256, 292, 198, 196, 22, 42, 676, 912, 870, 474, 484, 35, 68, 1764, 2812, 3358, 2774, 1140, 1225, 56, 110, 4624, 8928, 12040, 13902, 9060, 2748, 3136, 90, 178, 12100, 28152, 47320, 55752, 60762, 30440]

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

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