A260591 - cp's OEIS frontend

A260591 a(n) is the number of odd numbers k < 2^n such that A260590(k) = n.

n	a(n)
1	0
2	1
3	0
4	1
5	2
6	0
7	3
8	7
9	0
10	12
11	0
12	30
13	85
14	0
15	173
16	476
17	0
18	961
19	0
20	2652
21	8045
22	0
23	17637
24	51033
25	0
26	108950
27	312455
28	0
29	663535
30	0
31	1900470
32	5936673
33	0
34	13472296
35	39993895
36	0
37	87986917
38	0
39	257978502
40	820236724
41	0
42	1899474678
43	5723030586
44	0
45	12809477536
46	38036848410
47	0
48	84141805077
49	0
50	248369601964

[0, 1, 0, 1, 2, 0, 3, 7, 0, 12, 0, 30, 85, 0, 173, 476, 0, 961, 0, 2652, 8045, 0, 17637, 51033, 0, 108950, 312455, 0, 663535, 0, 1900470, 5936673, 0, 13472296, 39993895, 0, 87986917, 0, 257978502, 820236724, 0, 1899474678, 5723030586, 0, 12809477536, 38036848410, 0, 84141805077, 0, 248369601964]

cp's OEIS Frontend

A260591 a(n) is the number of odd numbers k < 2^n such that A260590(k) = n.

Table of values

List of values