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.

A207908 T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 0 0 and 0 1 1 vertically.

Table of values

n a(n)
1 2
2 4
3 4
4 6
5 16
6 6
7 9
8 36
9 36
10 9
11 15
12 81
13 102
14 81
15 13
16 25
17 225
18 289
19 261
20 169
21 18
22 40
23 625
24 1071
25 841
26 611
27 324
28 25
29 64
30 1600
31 3969
32 4089
33 2209
34 1278
35 625
36 34
37 104
38 4096
39 13230
40 19881
41 13865
42 5041
43 2625
44 1156
45 46
46 169
47 10816
48 44100
49 80511
50 87025
51 39831
52 11025

List of values

[2, 4, 4, 6, 16, 6, 9, 36, 36, 9, 15, 81, 102, 81, 13, 25, 225, 289, 261, 169, 18, 40, 625, 1071, 841, 611, 324, 25, 64, 1600, 3969, 4089, 2209, 1278, 625, 34, 104, 4096, 13230, 19881, 13865, 5041, 2625, 1156, 46, 169, 10816, 44100, 80511, 87025, 39831, 11025]