1,1

Table of n, a(n) for n=1..18.

Carlos Rivera, Puzzle 37. Set of even numbers { ai } such that every ai + aj + 1 is prime (i & j are different), The Prime Puzzles and Problems Connection.

4+54+1 is prime.

Cf. A093483, A103828, A119752, A133761.

Sequence in context: A162688 A352634 A070232 * A095969 A090608 A197467

Adjacent sequences: A037097 A037098 A037099 * A037101 A037102 A037103

nonn,more

Carlos Rivera

Edited and extended with a(15)-a(18) by Don Reble, Feb 13 2019

approved