A369390 - cp's OEIS frontend

A369390 a(n) = [x^prime(n)] Product_{k=1..n} (x^prime(k) + 1 + 1/x^prime(k)).

n	a(n)
1	1
2	1
3	2
4	4
5	6
6	13
7	31
8	77
9	188
10	449
11	1191
12	3014
13	7920
14	21498
15	57833
16	154073
17	412733
18	1141274
19	3106771
20	8576977
21	24015471
22	66489615
23	185886699
24	517837152
25	1435964205
26	4034697191
27	11438332340
28	32395341851
29	92396549863
30	263233759500
31	736127855014
32	2093027604453

[1, 1, 2, 4, 6, 13, 31, 77, 188, 449, 1191, 3014, 7920, 21498, 57833, 154073, 412733, 1141274, 3106771, 8576977, 24015471, 66489615, 185886699, 517837152, 1435964205, 4034697191, 11438332340, 32395341851, 92396549863, 263233759500, 736127855014, 2093027604453]

cp's OEIS Frontend

A369390 a(n) = [x^prime(n)] Product_{k=1..n} (x^prime(k) + 1 + 1/x^prime(k)).

Table of values

List of values