A152483 Even numbers which are not the sum of 2 odd semiprimes.

2, 4, 6, 8, 10, 12, 14, 16, 20, 22, 26, 28, 32, 38, 52, 62

Offset

1,1

Comments

No more terms < 10^9. Conjectured to be complete.

Links

Table of n, a(n) for n=1..16.

Example

62 is in this sequence because no 2 odd semiprimes sum to 62. 64 is not in this sequence because the sum of 9 (odd semiprime) and 55 (odd semiprime) is 64.

Crossrefs

Cf. A118081, A046315, A152482, A152484.

Sequence in context: A360015 A363488 A118081 * A330688 A280743 A162764

Adjacent sequences: A152480 A152481 A152482 * A152484 A152485 A152486

Keyword

fini,nonn

Author

Donovan Johnson, Dec 06 2008

Status

approved