A242180 - cp's OEIS frontend

A242180 Least prime divisor of q(n) which does not divide any q(k) with k < n, or 1 if such a primitive prime divisor does not exist, where q(.) is the strict partition function given by A000009.

n	a(n)
1	1
2	1
3	2
4	1
5	3
6	1
7	5
8	1
9	1
10	1
11	1
12	1
13	1
14	11
15	1
16	1
17	19
18	23
19	1
20	1
21	1
22	89
23	13
24	61
25	71
26	1
27	1
28	37
29	1
30	1
31	17
32	1
33	7
34	1
35	1
36	167
37	1
38	1
39	491
40	53
41	1
42	31
43	1
44	227
45	1
46	1
47	1
48	97
49	1
50	59
51	241
52	29
53	1
54	953
55	1063
56	1777
57	1
58	367
59	1
60	1

[1, 1, 2, 1, 3, 1, 5, 1, 1, 1, 1, 1, 1, 11, 1, 1, 19, 23, 1, 1, 1, 89, 13, 61, 71, 1, 1, 37, 1, 1, 17, 1, 7, 1, 1, 167, 1, 1, 491, 53, 1, 31, 1, 227, 1, 1, 1, 97, 1, 59, 241, 29, 1, 953, 1063, 1777, 1, 367, 1, 1]

cp's OEIS Frontend

A242180 Least prime divisor of q(n) which does not divide any q(k) with k < n, or 1 if such a primitive prime divisor does not exist, where q(.) is the strict partition function given by A000009.

Table of values

List of values