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.

A302278 T(n,k) = number of n X k 0..1 arrays with every element equal to 1, 2 or 4 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

Table of values

n a(n)
1 0
2 1
3 0
4 1
5 3
6 0
7 2
8 7
9 10
10 0
11 3
12 10
13 22
14 23
15 0
16 5
17 27
18 29
19 79
20 61
21 0
22 8
23 45
24 74
25 89
26 269
27 162
28 0
29 13
30 98
31 162
32 283
33 353
34 942
35 421
36 0
37 21
38 193
39 363
40 649
41 1219
42 941
43 3401
44 1103
45 0
46 34
47 379
48 782
49 1621
50 3621
51 3854
52 3316
53 12283
54 2890
55 0
56 55
57 778
58 1766
59 4209
60 14125
61 15862
62 14639

List of values

[0, 1, 0, 1, 3, 0, 2, 7, 10, 0, 3, 10, 22, 23, 0, 5, 27, 29, 79, 61, 0, 8, 45, 74, 89, 269, 162, 0, 13, 98, 162, 283, 353, 942, 421, 0, 21, 193, 363, 649, 1219, 941, 3401, 1103, 0, 34, 379, 782, 1621, 3621, 3854, 3316, 12283, 2890, 0, 55, 778, 1766, 4209, 14125, 15862, 14639]