1,1

q>p are "twin simili-primes of order 2" if (p,q) are in A123929 and satisfy q-p=3. Conjecture : this sequence is infinite

sequence gives n=A123929(k) for k such that A123929(k+1)-A123929(k)=3

Cf. A123929.

Sequence in context: A054148 A037591 A037682 this_sequence A164537 A015536 A005785

Adjacent sequences: A126696 A126697 A126698 this_sequence A126700 A126701 A126702

nonn

Benoit Cloitre (benoit7848c(AT)orange.fr), Feb 11 2007