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.

A277678 Number T(n,k) of binary words of length n containing exactly k (possibly overlapping) occurrences of the subword 11011; triangle T(n,k), n>=0, k=0..max(0,floor((n-2)/3)), read by rows.

Table of values

n a(n)
0 1
1 2
2 4
3 8
4 16
5 31
6 1
7 60
8 4
9 116
10 12
11 225
12 30
13 1
14 437
15 70
16 5
17 849
18 158
19 17
20 1649
21 351
22 47
23 1
24 3202
25 770
26 118
27 6
28 6217
29 1669
30 283
31 23
32 12071
33 3578
34 664
35 70
36 1
37 23438
38 7599
39 1535
40 189
41 7
42 45510
43 16016
44 3500
45 480
46 30
47 88368
48 33545
49 7876
50 1182
51 100
52 1
53 171586

List of values

[1, 2, 4, 8, 16, 31, 1, 60, 4, 116, 12, 225, 30, 1, 437, 70, 5, 849, 158, 17, 1649, 351, 47, 1, 3202, 770, 118, 6, 6217, 1669, 283, 23, 12071, 3578, 664, 70, 1, 23438, 7599, 1535, 189, 7, 45510, 16016, 3500, 480, 30, 88368, 33545, 7876, 1182, 100, 1, 171586]