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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.

A236233 Number of binary words of length n with exactly 4 (possibly overlapping) occurrences of the subword given by the binary expansion of n.

Table of values

n a(n)
7 2
8 0
9 0
10 1
11 0
12 0
13 1
14 0
15 829
16 0
17 1
18 135
19 33
20 1
21 13240
22 6875
23 4214
24 1120
25 32898
26 13380
27 916700
28 124480
29 1436212
30 984719
31 64373760
32 126300
33 1658572
34 10718156
35 10201655
36 151128452
37 59698016
38 302737587
39 335666252
40 302196960
41 1826553416
42 42810588352
43 9670953778

List of values

[2, 0, 0, 1, 0, 0, 1, 0, 829, 0, 1, 135, 33, 1, 13240, 6875, 4214, 1120, 32898, 13380, 916700, 124480, 1436212, 984719, 64373760, 126300, 1658572, 10718156, 10201655, 151128452, 59698016, 302737587, 335666252, 302196960, 1826553416, 42810588352, 9670953778]

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

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