A048052 Start of the first occurrence of n consecutive reversible primes (emirps).

2, 2, 2, 2, 2, 2, 2, 727, 1193, 1193, 1477271183, 9387802769, 15423094826093

Offset: 1

Author

Jud McCranie

Keywords

• base
• nonn
• more

Comments

Palindromic primes are allowed.

Examples

			2, 3, 5, 7, 11, 13 and 17 are consecutive reversible primes, so a(7) = 2.
		

Links

• Carlos Rivera, Problem 17. The largest known sequence of consecutive and reversible primes, Problems and Puzzles.

Crossrefs

Cf. A040104 (n=10), A048051 (n=11), A048053 (n=12), A003684, A006567, A007628, A046732, A048054, A048895.

Extensions

Corrected by Rick L. Shepherd, May 28 2002

a(13) from Giovanni Resta, Nov 07 2019