A334793 - cp's OEIS frontend

A334793 a(n) = Sum_{d|n} lcm(tau(d), pod(d)) where tau(k) is the number of divisors of k (A000005) and pod(k) is the product of divisors of k (A007955).

n	a(n)
1	1
2	3
3	7
4	27
5	11
6	45
7	15
8	91
9	34
10	113
11	23
12	1797
13	27
14	213
15	917
16	5211
17	35
18	5904
19	39
20	24137
21	1785
22	509
23	47
24	333637
25	386
26	705
27	2950
28	66093
29	59
30	811055
31	63
32	103515
33	4385
34	1193
35	4925
36	10085352
37	75
38	1485
39	6117
40	2584201
41	83
42	3113715
43	87
44	256085
45	183194
46	2165
47	95

[1, 3, 7, 27, 11, 45, 15, 91, 34, 113, 23, 1797, 27, 213, 917, 5211, 35, 5904, 39, 24137, 1785, 509, 47, 333637, 386, 705, 2950, 66093, 59, 811055, 63, 103515, 4385, 1193, 4925, 10085352, 75, 1485, 6117, 2584201, 83, 3113715, 87, 256085, 183194, 2165, 95]

cp's OEIS Frontend

A334793 a(n) = Sum_{d|n} lcm(tau(d), pod(d)) where tau(k) is the number of divisors of k (A000005) and pod(k) is the product of divisors of k (A007955).

Table of values

List of values