A109833 Smallest prime starting an arithmetic progression meeting also prime(n) and having a maximal number of terms less than prime(n).

2, 3, 3, 3, 7, 5, 3, 5, 5, 3, 19, 5, 7, 11, 5, 5, 13, 7, 3, 13, 61, 47, 5, 7, 11, 13, 53, 13, 23, 7, 11, 5, 31, 5, 79, 7, 127, 5, 5, 23, 19, 11, 67, 5, 19, 3, 7, 107, 31, 53, 41, 151, 11, 107, 227, 251, 151, 37, 11, 43, 53, 73, 11, 7, 47, 61, 61, 23, 241, 53, 71, 277, 13

Offset: 2

Author

Reinhard Zumkeller, Jul 04 2005

Keywords

• nonn

Comments

a(n) = A000040(n) - A109831(n) * A109832(n).

Links

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