A136753 - cp's OEIS frontend

A136753 G.f.: A(x) = ...o x/(1-x^8) o x/(1-x^4) o x/(1-x^2) o x/(1-x), composition of functions x/(1 - x^{2^n}) for n=...,3,2,1,0.

n	a(n)
1	1
2	1
3	2
4	4
5	9
6	21
7	52
8	134
9	355
10	955
11	2590
12	7052
13	19246
14	52638
15	144368
16	397468
17	1099720
18	3060936
19	8577496
20	24210808
21	68843806
22	197176726
23	568585576
24	1649739332
25	4812731846
26	14105205846
27	41498665884
28	122469937048

[1, 1, 2, 4, 9, 21, 52, 134, 355, 955, 2590, 7052, 19246, 52638, 144368, 397468, 1099720, 3060936, 8577496, 24210808, 68843806, 197176726, 568585576, 1649739332, 4812731846, 14105205846, 41498665884, 122469937048]

cp's OEIS Frontend

A136753 G.f.: A(x) = ...o x/(1-x^8) o x/(1-x^4) o x/(1-x^2) o x/(1-x), composition of functions x/(1 - x^{2^n}) for n=...,3,2,1,0.

Table of values

List of values