A191768 - cp's OEIS frontend

A191768 G.f. a(x) satisfies: A(x) = 1 + Sum_{n>=1} x^n*A(x)^A000265(n) where A000265(n) = largest odd divisor of n.

n	a(n)
0	1
1	1
2	2
3	4
4	10
5	25
6	68
7	193
8	565
9	1688
10	5136
11	15854
12	49517
13	156191
14	496836
15	1591924
16	5133091
17	16643856
18	54234349
19	177505376
20	583272256
21	1923482331
22	6363842492
23	21117432227
24	70265970878
25	234388421515
26	783664894313
27	2625748635300

[1, 1, 2, 4, 10, 25, 68, 193, 565, 1688, 5136, 15854, 49517, 156191, 496836, 1591924, 5133091, 16643856, 54234349, 177505376, 583272256, 1923482331, 6363842492, 21117432227, 70265970878, 234388421515, 783664894313, 2625748635300]

cp's OEIS Frontend

A191768 G.f. a(x) satisfies: A(x) = 1 + Sum_{n>=1} x^n*A(x)^A000265(n) where A000265(n) = largest odd divisor of n.

Table of values

List of values