A130006 Prime numbers arising from A050704.

2, 3, 3, 5, 5, 7, 11, 11, 11, 17, 19, 23, 17, 23, 29, 29, 37, 31, 43, 43, 29, 47, 47, 43, 53, 59, 67, 41, 71, 71, 59, 71, 83, 71, 97, 83, 59, 79, 89, 83, 107, 113, 71, 107, 127, 103, 131, 157, 137, 173, 179, 131, 167, 101, 179, 193, 139, 167, 179, 107, 191, 197, 173

Offset: 1

Author

Tomas Xordan, Jun 15 2007

Keywords

• easy
• nonn

Examples

			a(10)=17 because A050704(10) - prime factors of A050704(10) = 28-(7+2+2)=28-11=17.
		

Crossrefs

Cf. A050704.

Formula

a(n)=A050704(n) - (prime factors of A050704(n)).