A145338 - cp's OEIS frontend

A145338 a(n) is the smallest prime p where |d(p-1) - d(p+1)| = n. (d(m) = the number of divisors of m.)

n	a(n)
0	7
1	2
2	11
3	197
4	23
5	37
6	47
7	401
8	59
9	1601
10	181
11	16901
12	167
13	3137
14	179
15	577
16	419
17	1297
18	1051
19	12101
20	359
21	739601
22	1009
23	4357
24	1511
25	50177
26	719
27	171610001
28	839
29	67601
30	10657
31	9096257
32	1439
33	240101
34	3697
35	145540097
36	3023
37	15877
38	2879
39	3587237
40	2521

[7, 2, 11, 197, 23, 37, 47, 401, 59, 1601, 181, 16901, 167, 3137, 179, 577, 419, 1297, 1051, 12101, 359, 739601, 1009, 4357, 1511, 50177, 719, 171610001, 839, 67601, 10657, 9096257, 1439, 240101, 3697, 145540097, 3023, 15877, 2879, 3587237, 2521]

cp's OEIS Frontend

A145338 a(n) is the smallest prime p where |d(p-1) - d(p+1)| = n. (d(m) = the number of divisors of m.)

Table of values

List of values