A289172 - cp's OEIS frontend

A289172 Irregular triangle read by rows: row n lists terms m of A038566(n) such that A001221(m) = A051265(n), with a(1) = 1.

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

[1, 1, 2, 3, 2, 3, 4, 5, 6, 3, 5, 7, 2, 4, 5, 7, 8, 3, 7, 9, 6, 10, 5, 7, 11, 6, 10, 12, 3, 5, 9, 11, 13, 14, 15, 6, 10, 12, 14, 15, 5, 7, 11, 13, 17, 6, 10, 12, 14, 15, 18, 3, 7, 9, 11, 13, 17, 19, 10, 20, 15, 21, 6, 10, 12, 14, 15, 18, 20, 21, 22, 5, 7, 11]

cp's OEIS Frontend

A289172 Irregular triangle read by rows: row n lists terms m of A038566(n) such that A001221(m) = A051265(n), with a(1) = 1.

Table of values

List of values

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

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

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