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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.

A374712 a(n) is the number of binary strings of length n that have no common ones with some of their cyclic shifts.

Table of values

n a(n)
0 1
1 1
2 3
3 4
4 11
5 16
6 30
7 50
8 115
9 157
10 338
11 507
12 1094
13 1587
14 3538
15 4594
16 11379
17 14842
18 33717
19 44879
20 108346
21 129119
22 328353
23 401029
24 990670
25 1176391
26 3021359
27 3366733
28 9202918
29 10146579
30 26569610
31 29412429
32 82152435
33 83243894
34 250231696
35 288536609
36 866141480

List of values

[1, 1, 3, 4, 11, 16, 30, 50, 115, 157, 338, 507, 1094, 1587, 3538, 4594, 11379, 14842, 33717, 44879, 108346, 129119, 328353, 401029, 990670, 1176391, 3021359, 3366733, 9202918, 10146579, 26569610, 29412429, 82152435, 83243894, 250231696, 288536609, 866141480]

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

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