A180114 - cp's OEIS frontend

A180114 a(n) = sigma(A001694(n)), sum of divisors of the powerful number A001694(n).

n	a(n)
1	1
2	7
3	15
4	13
5	31
6	31
7	40
8	63
9	91
10	57
11	127
12	195
13	121
14	217
15	280
16	133
17	156
18	255
19	403
20	183
21	399
22	465
23	600
24	403
25	364
26	511
27	819
28	307
29	847
30	400
31	381
32	855
33	961
34	1240
35	741
36	931
37	1092
38	1023
39	553
40	1651
41	781
42	1815
43	1240
44	1281
45	1093
46	1767
47	1953
48	871
49	2520
50	2821
51	993
52	1995

[1, 7, 15, 13, 31, 31, 40, 63, 91, 57, 127, 195, 121, 217, 280, 133, 156, 255, 403, 183, 399, 465, 600, 403, 364, 511, 819, 307, 847, 400, 381, 855, 961, 1240, 741, 931, 1092, 1023, 553, 1651, 781, 1815, 1240, 1281, 1093, 1767, 1953, 871, 2520, 2821, 993, 1995]

cp's OEIS Frontend

A180114 a(n) = sigma(A001694(n)), sum of divisors of the powerful number A001694(n).

Table of values

List of values