A341528 - cp's OEIS frontend

A341528 a(n) = n * sigma(A003961(n)), where A003961 shifts the prime factorization of n one step towards larger primes, and sigma is the sum of the divisors of n.

n	a(n)
1	1
2	8
3	18
4	52
5	40
6	144
7	84
8	320
9	279
10	320
11	154
12	936
13	234
14	672
15	720
16	1936
17	340
18	2232
19	456
20	2080
21	1512
22	1232
23	690
24	5760
25	1425
26	1872
27	4212
28	4368
29	928
30	5760
31	1178
32	11648
33	2772
34	2720
35	3360
36	14508
37	1554
38	3648
39	4212
40	12800
41	1804
42	12096
43	2064
44	8008
45	11160
46	5520
47	2538
48	34848
49	6517
50	11400
51	6120
52	12168
53	3180
54	33696
55	6160
56	26880

[1, 8, 18, 52, 40, 144, 84, 320, 279, 320, 154, 936, 234, 672, 720, 1936, 340, 2232, 456, 2080, 1512, 1232, 690, 5760, 1425, 1872, 4212, 4368, 928, 5760, 1178, 11648, 2772, 2720, 3360, 14508, 1554, 3648, 4212, 12800, 1804, 12096, 2064, 8008, 11160, 5520, 2538, 34848, 6517, 11400, 6120, 12168, 3180, 33696, 6160, 26880]

cp's OEIS Frontend

A341528 a(n) = n * sigma(A003961(n)), where A003961 shifts the prime factorization of n one step towards larger primes, and sigma is the sum of the divisors of n.

Table of values

List of values