A304886 - cp's OEIS frontend

A304886 Irregular triangle where row n contains indices k where the product of A002110(k) = A025487(n).

n	a(n)
1	0
2	1
3	1
4	1
5	2
6	1
7	1
8	1
9	1
10	2
11	1
12	1
13	1
14	1
15	1
16	1
17	2
18	3
19	1
20	1
21	1
22	1
23	1
24	2
25	2
26	1
27	1
28	1
29	2
30	1
31	3
32	1
33	1
34	1
35	1
36	1
37	1
38	1
39	2
40	2
41	1
42	1
43	1
44	1
45	2
46	1
47	1
48	3
49	1
50	1
51	1
52	1
53	1
54	1
55	1
56	1
57	1
58	2
59	2
60	2
61	3
62	1
63	1
64	1
65	1
66	1
67	2
68	4
69	2
70	2
71	2
72	1
73	1
74	1
75	3
76	1
77	1
78	1
79	1
80	1
81	1
82	1
83	1
84	1
85	1
86	1
87	2
88	2

[0, 1, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 2, 3, 1, 1, 1, 1, 1, 2, 2, 1, 1, 1, 2, 1, 3, 1, 1, 1, 1, 1, 1, 1, 2, 2, 1, 1, 1, 1, 2, 1, 1, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 3, 1, 1, 1, 1, 1, 2, 4, 2, 2, 2, 1, 1, 1, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2]

cp's OEIS Frontend

A304886 Irregular triangle where row n contains indices k where the product of A002110(k) = A025487(n).

Table of values

List of values

n	a(n)
1	0
2	1
3	1
4	1
5	2
6	1
7	1
8	1
9	1
10	2
11	1
12	1
13	1
14	1
15	1
16	1
17	2
18	3
19	1
20	1
21	1
22	1
23	1
24	2
25	2
26	1
27	1
28	1
29	2
30	1
31	3
32	1
33	1
34	1
35	1
36	1
37	1
38	1
39	2
40	2
41	1
42	1
43	1
44	1
45	2
46	1
47	1
48	3
49	1
50	1
51	1
52	1
53	1
54	1
55	1
56	1
57	1
58	2
59	2
60	2
61	3
62	1
63	1
64	1
65	1
66	1
67	2
68	4
69	2
70	2
71	2
72	1
73	1
74	1
75	3
76	1
77	1
78	1
79	1
80	1
81	1
82	1
83	1
84	1
85	1
86	1
87	2
88	2

n	a(n)
1	0
2	1
3	1
4	1
5	2
6	1
7	1
8	1
9	1
10	2
11	1
12	1
13	1
14	1
15	1
16	1
17	2
18	3
19	1
20	1
21	1
22	1
23	1
24	2
25	2
26	1
27	1
28	1
29	2
30	1
31	3
32	1
33	1
34	1
35	1
36	1
37	1
38	1
39	2
40	2
41	1
42	1
43	1
44	1
45	2
46	1
47	1
48	3
49	1
50	1
51	1
52	1
53	1
54	1
55	1
56	1
57	1
58	2
59	2
60	2
61	3
62	1
63	1
64	1
65	1
66	1
67	2
68	4
69	2
70	2
71	2
72	1
73	1
74	1
75	3
76	1
77	1
78	1
79	1
80	1
81	1
82	1
83	1
84	1
85	1
86	1
87	2
88	2

n	a(n)
1	0
2	1
3	1
4	1
5	2
6	1
7	1
8	1
9	1
10	2
11	1
12	1
13	1
14	1
15	1
16	1
17	2
18	3
19	1
20	1
21	1
22	1
23	1
24	2
25	2
26	1
27	1
28	1
29	2
30	1
31	3
32	1
33	1
34	1
35	1
36	1
37	1
38	1
39	2
40	2
41	1
42	1
43	1
44	1
45	2
46	1
47	1
48	3
49	1
50	1
51	1
52	1
53	1
54	1
55	1
56	1
57	1
58	2
59	2
60	2
61	3
62	1
63	1
64	1
65	1
66	1
67	2
68	4
69	2
70	2
71	2
72	1
73	1
74	1
75	3
76	1
77	1
78	1
79	1
80	1
81	1
82	1
83	1
84	1
85	1
86	1
87	2
88	2