A112458 - cp's OEIS frontend

A112458 Let b(n) = A112455(n). Then b(n)/n is an integer iff n is prime (at least for the first few values, as for the Perrin sequence). This sequence is the values of b(p)/p, where p is the n th prime.

n	a(n)
1	1
2	1
3	-1
4	1
5	0
6	1
7	3
8	-3
9	2
10	-16
11	13
12	58
13	93
14	-48
15	257
16	-508
17	-2439
18	3751
19	3120
20	21824
21	-28485
22	-49886
23	-184653
24	-158325
25	-1238859
26	2621639
27	-6281879
28	-10666638
29	5587636
30	-32300736
31	-541428896
32	-309499443
33	-3404250996
34	4487895627
35	30910925690
36	-33820854920
37	-104685213761
38	219810779538

[1, 1, -1, 1, 0, 1, 3, -3, 2, -16, 13, 58, 93, -48, 257, -508, -2439, 3751, 3120, 21824, -28485, -49886, -184653, -158325, -1238859, 2621639, -6281879, -10666638, 5587636, -32300736, -541428896, -309499443, -3404250996, 4487895627, 30910925690, -33820854920, -104685213761, 219810779538]

cp's OEIS Frontend

A112458 Let b(n) = A112455(n). Then b(n)/n is an integer iff n is prime (at least for the first few values, as for the Perrin sequence). This sequence is the values of b(p)/p, where p is the n th prime.

Table of values

List of values