A109832 Number d such that (A109833(n)+k*d: 0<=k<=A109831(n)) is an arithmetic progression of primes.

1, 2, 2, 4, 6, 6, 8, 6, 6, 14, 18, 12, 12, 18, 12, 18, 24, 30, 34, 30, 6, 12, 42, 30, 30, 30, 18, 48, 30, 30, 30, 66, 36, 48, 24, 30, 12, 54, 42, 78, 54, 60, 42, 48, 60, 104, 72, 30, 66, 60, 66, 30, 60, 30, 12, 6, 30, 120, 90, 60, 60, 78, 60, 102, 90, 90, 138, 108, 36

Offset: 2

Author

Reinhard Zumkeller, Jul 04 2005

Keywords

• nonn

Comments

a(n) = (A000040(n) - A109833(n)) / A109831(n).

Links

• Eric Weisstein's World of Mathematics, Prime Arithmetic Progression
• Index entries for sequences related to primes in arithmetic progressions