A319823 - cp's OEIS frontend

A319823 Primes p such that min(d(p-1), d(p+1)) is larger than the corresponding values of all previous primes, where d(n) is the number of divisors of n (A000005).

n	a(n)
1	2
2	3
3	5
4	7
5	17
6	19
7	41
8	197
9	199
10	449
11	701
12	881
13	3079
14	4159
15	18089
16	40699
17	51679
18	90271
19	388961
20	403649
21	446081
22	906751
23	1276001
24	12227489
25	37487449
26	53308529
27	59522849
28	109245401
29	285258401
30	459712639
31	1381951999
32	2560742911
33	2969200961
34	8505402751

[2, 3, 5, 7, 17, 19, 41, 197, 199, 449, 701, 881, 3079, 4159, 18089, 40699, 51679, 90271, 388961, 403649, 446081, 906751, 1276001, 12227489, 37487449, 53308529, 59522849, 109245401, 285258401, 459712639, 1381951999, 2560742911, 2969200961, 8505402751]

cp's OEIS Frontend

A319823 Primes p such that min(d(p-1), d(p+1)) is larger than the corresponding values of all previous primes, where d(n) is the number of divisors of n (A000005).

Table of values

List of values