A123916 - cp's OEIS frontend

A123916 Number of binary words whose (unique) decreasing Lyndon decomposition is into Lyndon words each with an odd number of 1's; EULER transform of A000048.

n	a(n)
1	1
2	1
3	2
4	3
5	6
6	10
7	19
8	34
9	65
10	120
11	229
12	432
13	829
14	1583
15	3051
16	5874
17	11370
18	22012
19	42756
20	83113
21	161917
22	315723
23	616588
24	1205232
25	2358604
26	4619485
27	9055960
28	17766086
29	34880215
30	68524486
31	134707150
32	264960828
33	521449025

[1, 1, 2, 3, 6, 10, 19, 34, 65, 120, 229, 432, 829, 1583, 3051, 5874, 11370, 22012, 42756, 83113, 161917, 315723, 616588, 1205232, 2358604, 4619485, 9055960, 17766086, 34880215, 68524486, 134707150, 264960828, 521449025]

cp's OEIS Frontend

A123916 Number of binary words whose (unique) decreasing Lyndon decomposition is into Lyndon words each with an odd number of 1's; EULER transform of A000048.

Table of values

List of values