A319111 - cp's OEIS frontend

A319111 Expansion of Product_{k>=1} 1/(1 - phi(k)*x^k), where phi = Euler totient function (A000010).

n	a(n)
0	1
1	1
2	2
3	4
4	7
5	13
6	22
7	38
8	63
9	105
10	174
11	278
12	447
13	707
14	1122
15	1766
16	2729
17	4213
18	6482
19	9880
20	15069
21	22799
22	34290
23	51378
24	76777
25	114365
26	169324
27	250162
28	368505
29	540575
30	792042
31	1154798
32	1680385
33	2439101
34	3530308
35	5103380
36	7349875
37	10564955
38	15155752
39	21696072
40	31007949
41	44199845

[1, 1, 2, 4, 7, 13, 22, 38, 63, 105, 174, 278, 447, 707, 1122, 1766, 2729, 4213, 6482, 9880, 15069, 22799, 34290, 51378, 76777, 114365, 169324, 250162, 368505, 540575, 792042, 1154798, 1680385, 2439101, 3530308, 5103380, 7349875, 10564955, 15155752, 21696072, 31007949, 44199845]

cp's OEIS Frontend

A319111 Expansion of Product_{k>=1} 1/(1 - phi(k)*x^k), where phi = Euler totient function (A000010).

Table of values

List of values