A174713 - cp's OEIS frontend

A174713 Triangle read by rows, A173305 (A000009 shifted down twice) * A174712 (diagonalized variant of A000041).

n	a(n)
0	1
1	1
2	1
3	1
4	2
5	1
6	2
7	1
8	2
9	3
10	2
11	2
12	4
13	2
14	2
15	3
16	5
17	3
18	4
19	3
20	6
21	4
22	4
23	3
24	5
25	8
26	5
27	6
28	6
29	5
30	10
31	6
32	8
33	6
34	5
35	7
36	12
37	8
38	10
39	9
40	10
41	7
42	15
43	10
44	12
45	12
46	10
47	7
48	11
49	18
50	12
51	16
52	15
53	15
54	14
55	11
56	22
57	15
58	20
59	18
60	20
61	14
62	11
63	15

[1, 1, 1, 1, 2, 1, 2, 1, 2, 3, 2, 2, 4, 2, 2, 3, 5, 3, 4, 3, 6, 4, 4, 3, 5, 8, 5, 6, 6, 5, 10, 6, 8, 6, 5, 7, 12, 8, 10, 9, 10, 7, 15, 10, 12, 12, 10, 7, 11, 18, 12, 16, 15, 15, 14, 11, 22, 15, 20, 18, 20, 14, 11, 15]

cp's OEIS Frontend

A174713 Triangle read by rows, A173305 (A000009 shifted down twice) * A174712 (diagonalized variant of A000041).

Table of values

List of values

n	a(n)
0	1
1	1
2	1
3	1
4	2
5	1
6	2
7	1
8	2
9	3
10	2
11	2
12	4
13	2
14	2
15	3
16	5
17	3
18	4
19	3
20	6
21	4
22	4
23	3
24	5
25	8
26	5
27	6
28	6
29	5
30	10
31	6
32	8
33	6
34	5
35	7
36	12
37	8
38	10
39	9
40	10
41	7
42	15
43	10
44	12
45	12
46	10
47	7
48	11
49	18
50	12
51	16
52	15
53	15
54	14
55	11
56	22
57	15
58	20
59	18
60	20
61	14
62	11
63	15

n	a(n)
0	1
1	1
2	1
3	1
4	2
5	1
6	2
7	1
8	2
9	3
10	2
11	2
12	4
13	2
14	2
15	3
16	5
17	3
18	4
19	3
20	6
21	4
22	4
23	3
24	5
25	8
26	5
27	6
28	6
29	5
30	10
31	6
32	8
33	6
34	5
35	7
36	12
37	8
38	10
39	9
40	10
41	7
42	15
43	10
44	12
45	12
46	10
47	7
48	11
49	18
50	12
51	16
52	15
53	15
54	14
55	11
56	22
57	15
58	20
59	18
60	20
61	14
62	11
63	15

n	a(n)
0	1
1	1
2	1
3	1
4	2
5	1
6	2
7	1
8	2
9	3
10	2
11	2
12	4
13	2
14	2
15	3
16	5
17	3
18	4
19	3
20	6
21	4
22	4
23	3
24	5
25	8
26	5
27	6
28	6
29	5
30	10
31	6
32	8
33	6
34	5
35	7
36	12
37	8
38	10
39	9
40	10
41	7
42	15
43	10
44	12
45	12
46	10
47	7
48	11
49	18
50	12
51	16
52	15
53	15
54	14
55	11
56	22
57	15
58	20
59	18
60	20
61	14
62	11
63	15