2,1

For a proper definition see the given references.

Eric Weisstein's World of Mathematics, Prime k-Tuples Conjecture,

T. Forbes, Prime k-tuplets,

a(8): 11 13 17 19 23 29 31 37 are prime and 37-11= 26= A008407(8).

A008407 (minimal difference of first and last prime in a prime k-tuplet), A023193 (prime k-tuplet conjectures), A047947 (Schinzel's rhobar).

Sequence in context: A131506 A113722 A141791 this_sequence A023828 A120133 A088961

Adjacent sequences: A065685 A065686 A065687 this_sequence A065689 A065690 A065691

more,nonn

frank.ellermann(AT)t-online.de, Dec 04 2001