A379498 - cp's OEIS frontend

A379498 a(n) = A276086(1+n) - A276086(A001065(n)), where A276086 is the primorial base exp-function, and A001065 is the sum of proper divisors of n.

n	a(n)
1	2
2	4
3	7
4	12
5	3
6	5
7	13
8	20
9	36
10	75
11	23
12	-175
13	73
14	105
15	195
16	300
17	123
18	-500
19	373
20	-375
21	1035
22	2175
23	623
24	1215
25	1870
26	3525
27	5575
28	5625
29	5
30	-161
31	19
32	28
33	-87
34	-249
35	-15
36	-8680
37	103
38	-915
39	-135
40	-1995
41	173
42	-4025
43	523
44	735
45	1533
46	1275
47	873
48	-9275
49	2610
50	4900
51	7125
52	14175
53	4373
54	8505
55	12675
56	25809
57	37125
58	78729
59	47

[2, 4, 7, 12, 3, 5, 13, 20, 36, 75, 23, -175, 73, 105, 195, 300, 123, -500, 373, -375, 1035, 2175, 623, 1215, 1870, 3525, 5575, 5625, 5, -161, 19, 28, -87, -249, -15, -8680, 103, -915, -135, -1995, 173, -4025, 523, 735, 1533, 1275, 873, -9275, 2610, 4900, 7125, 14175, 4373, 8505, 12675, 25809, 37125, 78729, 47]

cp's OEIS Frontend

A379498 a(n) = A276086(1+n) - A276086(A001065(n)), where A276086 is the primorial base exp-function, and A001065 is the sum of proper divisors of n.

Table of values

List of values