A247100 - cp's OEIS frontend

A247100 The number of ways to write an n-bit binary string and then define each run of ones as an element in an equivalence relation.

n	a(n)
0	1
1	2
2	4
3	9
4	21
5	51
6	127
7	324
8	844
9	2243
10	6073
11	16737
12	46905
13	133556
14	386062
15	1132107
16	3365627
17	10137559
18	30920943
19	95457178
20	298128278
21	941574417
22	3006040523
23	9697677885
24	31602993021
25	104001763258
26	345524136076
27	1158570129917
28	3919771027105
29	13377907523151

[1, 2, 4, 9, 21, 51, 127, 324, 844, 2243, 6073, 16737, 46905, 133556, 386062, 1132107, 3365627, 10137559, 30920943, 95457178, 298128278, 941574417, 3006040523, 9697677885, 31602993021, 104001763258, 345524136076, 1158570129917, 3919771027105, 13377907523151]

cp's OEIS Frontend

A247100 The number of ways to write an n-bit binary string and then define each run of ones as an element in an equivalence relation.

Table of values

List of values