A069472 Smallest twin prime in a sequence of exactly n disjoint twin pairs, sandwiched between non-twins.
29, 101, 179, 9419, 909287, 325267931, 678771479, 1107819732821, 170669145704411, 3324648277099157
Offset: 1
Examples
The first sequence of primes containing exactly 1 pair of twins, sandwiched between non-twins, is 29, 31. The first containing exactly 2 disjoint pairs similarly sandwiched is 101, 103, 107, 109. The first containing exactly 3 disjoint pairs similarly sandwiched is 179, 181, 191, 193, 197, 199. So the sequence starts 29, 101, 179.
Links
- C. Rivera, Prime Puzzles
Extensions
More terms from Lévai Gábor (gablevai(AT)vipmail.hu), Jan 11 2005