A349142 - cp's OEIS frontend

A349142 a(n) = Sum_{d|n} psi(n/d) * A348507(d), where psi is Dedekind psi (A001615), A348507(n) = A003959(n) - n, and A003959 is fully multiplicative with a(p) = (p+1).

n	a(n)
1	0
2	1
3	1
4	8
5	1
6	13
7	1
8	40
9	11
10	17
11	1
12	80
13	1
14	21
15	19
16	164
17	1
18	99
19	1
20	112
21	23
22	29
23	1
24	364
25	17
26	33
27	77
28	144
29	1
30	191
31	1
32	604
33	31
34	41
35	27
36	528
37	1
38	45
39	35
40	524
41	1
42	243
43	1
44	208
45	165
46	53
47	1
48	1424
49	23
50	187
51	43
52	240
53	1
54	597
55	35
56	684
57	47
58	65
59	1
60	1072
61	1
62	69
63	209
64	2084
65	39
66	347
67	1
68	304
69	55
70	327
71	1
72	2244
73	1
74	81
75	221
76	336
77	39
78	399

[0, 1, 1, 8, 1, 13, 1, 40, 11, 17, 1, 80, 1, 21, 19, 164, 1, 99, 1, 112, 23, 29, 1, 364, 17, 33, 77, 144, 1, 191, 1, 604, 31, 41, 27, 528, 1, 45, 35, 524, 1, 243, 1, 208, 165, 53, 1, 1424, 23, 187, 43, 240, 1, 597, 35, 684, 47, 65, 1, 1072, 1, 69, 209, 2084, 39, 347, 1, 304, 55, 327, 1, 2244, 1, 81, 221, 336, 39, 399]

cp's OEIS Frontend

A349142 a(n) = Sum_{d|n} psi(n/d) * A348507(d), where psi is Dedekind psi (A001615), A348507(n) = A003959(n) - n, and A003959 is fully multiplicative with a(p) = (p+1).

Table of values

List of values