A321192 - cp's OEIS frontend

A321192 a(n) = [x^n] Product_{k>=1} (1 + x^k)^tau_n(k), where tau_n(k) = number of ordered n-factorizations of k.

n	a(n)
0	1
1	1
2	2
3	6
4	20
5	55
6	239
7	700
8	3212
9	10104
10	48622
11	161579
12	806843
13	2799199
14	14379647
15	52018828
16	273472712
17	1023655306
18	5491615463
19	21234676241
20	115910309103
21	460998296937
22	2556361045845
23	10440651927427
24	58714921974979
25	245586789818255
26	1399187406060485

[1, 1, 2, 6, 20, 55, 239, 700, 3212, 10104, 48622, 161579, 806843, 2799199, 14379647, 52018828, 273472712, 1023655306, 5491615463, 21234676241, 115910309103, 460998296937, 2556361045845, 10440651927427, 58714921974979, 245586789818255, 1399187406060485]

cp's OEIS Frontend

A321192 a(n) = [x^n] Product_{k>=1} (1 + x^k)^tau_n(k), where tau_n(k) = number of ordered n-factorizations of k.

Table of values

List of values