A075067 Start of the first run of exactly n consecutive odd composite numbers.

9, 25, 91, 141, 201, 115, 1833, 525, 889, 1131, 1671, 2479, 2973, 4299, 5593, 1329, 9553, 30595, 19335, 16143, 15685, 81465, 28231, 31909, 19611, 35619, 82075, 44295, 43333, 34063, 89691, 162145, 134515, 173361, 31399, 404599, 212703

Offset: 1

Author

Amarnath Murthy, Sep 08 2002

Keywords

• nonn

Comments

More precisely, a(n)-2 and a(n) + 2n are two consecutive primes and are the smallest successive prime pair with a difference 2(n+1).

Crossrefs

This is a trivial variation of A000230 and A045881.

See A189118 for another version.

Extensions

More terms from Matthew Conroy, Sep 10 2002