A341697 - cp's OEIS frontend

A341697 a(1) = a(2) = 1; a(n+1) = Sum_{d|n, d < n} a(n/d) * a(d).

n	a(n)
1	1
2	1
3	1
4	1
5	2
6	2
7	4
8	4
9	6
10	7
11	11
12	11
13	17
14	17
15	25
16	29
17	38
18	38
19	54
20	54
21	72
22	80
23	102
24	102
25	136
26	140
27	174
28	186
29	228
30	228
31	300
32	300
33	366
34	388
35	464
36	480
37	594
38	594
39	702
40	736
41	874
42	874
43	1068
44	1068
45	1250
46	1324
47	1528
48	1528
49	1828
50	1844
51	2144
52	2220
53	2534
54	2534
55	2982
56	3026
57	3464
58	3572
59	4028
60	4028

[1, 1, 1, 1, 2, 2, 4, 4, 6, 7, 11, 11, 17, 17, 25, 29, 38, 38, 54, 54, 72, 80, 102, 102, 136, 140, 174, 186, 228, 228, 300, 300, 366, 388, 464, 480, 594, 594, 702, 736, 874, 874, 1068, 1068, 1250, 1324, 1528, 1528, 1828, 1844, 2144, 2220, 2534, 2534, 2982, 3026, 3464, 3572, 4028, 4028]

cp's OEIS Frontend

A341697 a(1) = a(2) = 1; a(n+1) = Sum_{d|n, d < n} a(n/d) * a(d).

Table of values

List of values