A185441 Records in A185439; record gaps between consecutive emirps.

4, 14, 34, 36, 112, 312, 1032, 3098, 10038, 30012, 100112, 300086, 1000158, 3000162, 10000056, 30000044, 100000422

Offset: 1

Author

Jonathan Vos Post, Feb 03 2011

Keywords

• nonn
• base
• more

Comments

This is to A005250 (increasing gaps between primes) as A006567 (emirps) are to A000040 (primes). Lower number of record emirp difference pair (emirp analog of A002386): 13, 17, 37, 113, 389, 1979, 3929.

Examples

			a(8) = 148th emirp - 147th emirp =  7027 - 3929 = 3098, given that R(7027) = 7207 is prime and R(3929) = 9293 is prime.
		

Crossrefs

Cf. A000040, A000101, A001223, A002386, A004086, A006567.

Extensions

a(13) - a(17) from Nathaniel Johnston, Apr 26 2011