A188367 Values of b such that (c+9b)*prime(n)#-1 is the least prime such that (c+kb)*prime(n)#-1 are all primes for 0 <= k <= 9, or 0 if there is no solution with c+9b < prime(n)#.

0, 0, 0, 0, 0, 289, 213, 22, 177, 266, 1257, 3278, 14999, 3011, 7506, 5531, 3590, 13714, 2456, 20010, 3584, 30464, 14611, 23835, 3937, 22689, 20687, 76314, 34164, 23928

Offset

1,6

Comments

Values of c are in A188366.

For n = 9, 13, and 16 (c+kb)*prime(n)#-1 is prime for k=10 as well.

Links

Table of n, a(n) for n=1..30.

Crossrefs

Cf. A188366.

Sequence in context: A272164 A107739 A221203 * A184046 A235810 A229906

Adjacent sequences: A188364 A188365 A188366 * A188368 A188369 A188370

Keyword

nonn,hard

Author

Pierre CAMI, Mar 29 2011

Extensions

More terms from Pierre CAMI

Status

approved