A143706 (1, 2, 3, 2^2, 5, 2*3, 7, 2^3, 3^2, 2*5, 11, 2^2*3, 13, 2*7, 3*5,..) becomes (1*2+3, 2*2+5, 2*3+7, 2*3+3, 2*2+5, 11*2+2, 3*13+2, 7*3+5,..).

5, 9, 13, 9, 9, 24, 41, 26, 25, 8, 40, 22, 45, 9, 12, 42, 11, 61, 157, 26, 39, 16, 43, 41, 29, 207, 64, 15, 11, 93, 11, 16, 13, 36, 691, 14, 25, 40, 117, 7, 307, 95, 20, 67, 100, 21, 71, 106, 9, 148, 116, 6, 144, 19, 162, 19, 165, 7, 52, 89, 61, 981, 11, 93, 49, 109, 97, 112

Offset: 1

Author

Juri-Stepan Gerasimov, Nov 13 2008

Keywords

• nonn

Examples

			a(8)=7*3+5=21+5=26.
a(9)=2*4+17=8+17=25.
a(10)=2*3+2=6+2=8.
a(11)=19*2+2=38+2=40.
a(12)=5*3+7=15+7=22.
a(13)=2*11+23=22+23=45,
etc.
		

Crossrefs

Cf. A141287, A141261, A136735.

Extensions

Corrected (9 duplicated, 75 replaced by 20 etc.) by R. J. Mathar, Apr 18 2010