A124785 Semiprime sopfr of semiprimes A115585.

4, 6, 9, 10, 10, 15, 14, 21, 25, 14, 22, 33, 26, 39, 22, 34, 49, 55, 22, 46, 26, 69, 34, 85, 26, 62, 91, 46, 74, 38, 111, 115, 82, 86, 34, 129, 133, 58, 141, 34, 106, 159, 169, 38, 183, 134, 201, 142, 213, 94, 235, 74, 166, 46, 253, 106, 259, 58, 265, 46, 86, 118, 194

Offset: 1

Author

Zak Seidov, Nov 07 2006

Keywords

• nonn

Comments

Cf. A001358 semiprimes, A001414 sopfr, A115585 Semiprimes with a semiprime sum of factors, A124786 Intersection of A115585 and A124785.

Examples

			a(3)=9 because A115585(3)=14=2*7=>2+7=9=3*3,
a(6)=15 because A115585(6)=26=2*13=>2+13=15=3*5.
		

Crossrefs

Cf. A001358, A001414, A115585, A124786.

Formula

a(n)=sopfr(A115585(n))