A382369 - cp's OEIS frontend

A382369 Expansion of 1/( 1 - 9 * Sum_{k>=0} x^(3^k) / (1 - x^(3^k)) )^(1/3).

n	a(n)
0	1
1	3
2	21
3	168
4	1416
5	12396
6	111219
7	1015221
8	9386643
9	87650775
10	824926152
11	7813623234
12	74403686022
13	711670543635
14	6833183666862
15	65826593737206
16	635962416394296
17	6159757277793783
18	59796182640515031
19	581643107427461664
20	5667929195670139296
21	55322424966010598556

[1, 3, 21, 168, 1416, 12396, 111219, 1015221, 9386643, 87650775, 824926152, 7813623234, 74403686022, 711670543635, 6833183666862, 65826593737206, 635962416394296, 6159757277793783, 59796182640515031, 581643107427461664, 5667929195670139296, 55322424966010598556]

cp's OEIS Frontend

A382369 Expansion of 1/( 1 - 9 * Sum_{k>=0} x^(3^k) / (1 - x^(3^k)) )^(1/3).

Table of values

List of values