A143310 - cp's OEIS frontend

A143310 Triangle read by rows, A000012 * A127446, 1 <= k <= n.

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

[1, 3, 2, 6, 2, 3, 10, 6, 3, 4, 15, 6, 3, 4, 5, 21, 12, 9, 4, 5, 6, 28, 12, 9, 4, 5, 6, 7, 36, 20, 9, 12, 5, 6, 7, 8, 45, 20, 18, 12, 5, 6, 7, 8, 9, 55, 30, 18, 12, 15, 6, 7, 8, 9, 10, 66, 30, 18, 12, 15, 6, 7, 8, 9, 10, 11, 78, 42, 30, 24, 15, 18, 7, 8, 9, 10, 11, 12]

cp's OEIS Frontend

A143310 Triangle read by rows, A000012 * A127446, 1 <= k <= n.

Table of values

List of values

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

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

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