A023521 - cp's OEIS frontend

A023521 Sum of distinct prime divisors of prime(n)*prime(n-1) - 1.

n	a(n)
2	5
3	9
4	19
5	21
6	73
7	18
8	32
9	111
10	42
11	451
12	196
13	381
14	883
15	108
16	93
17	526
18	266
19	232
20	72
21	2593
22	36
23	162
24	1236
25	98
26	112
27	752
28	55
29	26
30	3081
31	55
32	4161
33	1002
34	9523
35	135
36	1616
37	444
38	863
39	1368
40	117
41	415
42	266
43	3464
44	2642
45	1908
46	1172
47	3504
48	1312
49	2538
50	135

[5, 9, 19, 21, 73, 18, 32, 111, 42, 451, 196, 381, 883, 108, 93, 526, 266, 232, 72, 2593, 36, 162, 1236, 98, 112, 752, 55, 26, 3081, 55, 4161, 1002, 9523, 135, 1616, 444, 863, 1368, 117, 415, 266, 3464, 2642, 1908, 1172, 3504, 1312, 2538, 135]

cp's OEIS Frontend

A023521 Sum of distinct prime divisors of prime(n)*prime(n-1) - 1.

Table of values

List of values