A334794 - cp's OEIS frontend

A334794 a(n) = Sum_{d|n} lcm(sigma(d), pod(d)) where sigma(k) is the sum of divisors of k (A000203) and pod(k) is the product of divisors of k (A007955).

n	a(n)
1	1
2	7
3	13
4	63
5	31
6	55
7	57
8	1023
9	364
10	937
11	133
12	12207
13	183
14	1239
15	1843
16	32767
17	307
18	76222
19	381
20	168993
21	14181
22	4495
23	553
24	1672047
25	3906
26	14385
27	29524
28	23247
29	871
30	812785
31	993
32	2097151
33	17569
34	31525
35	58887
36	917158710
37	1407
38	22047
39	85371
40	23209953
41	1723
42	6238791

[1, 7, 13, 63, 31, 55, 57, 1023, 364, 937, 133, 12207, 183, 1239, 1843, 32767, 307, 76222, 381, 168993, 14181, 4495, 553, 1672047, 3906, 14385, 29524, 23247, 871, 812785, 993, 2097151, 17569, 31525, 58887, 917158710, 1407, 22047, 85371, 23209953, 1723, 6238791]

cp's OEIS Frontend

A334794 a(n) = Sum_{d|n} lcm(sigma(d), pod(d)) where sigma(k) is the sum of divisors of k (A000203) and pod(k) is the product of divisors of k (A007955).

Table of values

List of values