login
A082539
Primes p such that there is no prime q, q < p with q+1 dividing p+1.
6
2, 3, 13, 37, 61, 73, 109, 157, 193, 229, 241, 277, 313, 337, 373, 397, 409, 421, 457, 541, 577, 613, 661, 673, 709, 733, 757, 829, 877, 997, 1009, 1033, 1069, 1093, 1117, 1129, 1153, 1201, 1213, 1237, 1249, 1297, 1321, 1381, 1453, 1489, 1597, 1621, 1657
OFFSET
1,1
COMMENTS
Contains A005383, primes p such that (p+1)/2 is prime. - T. D. Noe, Apr 28 2004
FORMULA
A084196(A049084(a(n))) = 0.
MATHEMATICA
Select[Prime[Range[260]], AllTrue[Most[Divisors[# + 1]], !PrimeQ[#1 - 1] &] &] (* Amiram Eldar, Jun 06 2022 *)
CROSSREFS
Cf. A092307 (primes p such that there are no primes q, 3 < q < p, such that (q-1) divides (p-1)).
Sequence in context: A228278 A174742 A215279 * A168483 A100424 A347537
KEYWORD
nonn
AUTHOR
Benoit Cloitre, May 11 2003
EXTENSIONS
More terms from Reinhard Zumkeller, May 18 2003
STATUS
approved