A349143 - cp's OEIS frontend

A349143 a(n) = Sum_{d|n} A038040(d) * A348507(n/d), where A038040(n) = n*tau(n), 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	9
5	1
6	16
7	1
8	51
9	13
10	22
11	1
12	114
13	1
14	28
15	25
16	233
17	1
18	145
19	1
20	168
21	31
22	40
23	1
24	590
25	21
26	46
27	106
28	222
29	1
30	310
31	1
32	939
33	43
34	58
35	37
36	915
37	1
38	64
39	49
40	896
41	1
42	406
43	1
44	330
45	262
46	76
47	1
48	2570
49	29
50	297
51	61
52	384
53	1
54	1012
55	49
56	1202
57	67
58	94
59	1
60	2040
61	1
62	100
63	340
64	3489
65	55
66	598
67	1
68	492
69	79
70	574
71	1
72	4457
73	1
74	118
75	360
76	546
77	55

[0, 1, 1, 9, 1, 16, 1, 51, 13, 22, 1, 114, 1, 28, 25, 233, 1, 145, 1, 168, 31, 40, 1, 590, 21, 46, 106, 222, 1, 310, 1, 939, 43, 58, 37, 915, 1, 64, 49, 896, 1, 406, 1, 330, 262, 76, 1, 2570, 29, 297, 61, 384, 1, 1012, 49, 1202, 67, 94, 1, 2040, 1, 100, 340, 3489, 55, 598, 1, 492, 79, 574, 1, 4457, 1, 118, 360, 546, 55]

cp's OEIS Frontend

A349143 a(n) = Sum_{d|n} A038040(d) * A348507(n/d), where A038040(n) = n*tau(n), A348507(n) = A003959(n) - n, and A003959 is fully multiplicative with a(p) = (p+1).

Table of values

List of values