1,2

(Conjectured) Every number n > 17 is the sum of 3 distinct primes. a(n) is the complement of A124867(n) = {10, 12, 14, 15, 16, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, ...}, numbers that are the sum of 3 distinct primes.

A125688(a(n)) = 0. - Reinhard Zumkeller, Nov 30 2006

Table of n, a(n) for n=1..12.

Cf. A124867 (numbers that are the sum of 3 distinct primes), A068307.

Sequence in context: A242417 A225657 A175772 * A165209 A072227 A122427

Adjacent sequences: A124865 A124866 A124867 * A124869 A124870 A124871

fini,full,nonn

Alexander Adamchuk, Nov 11 2006

approved