A143710 (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,..).

6, 9, 12, 8, 9, 15, 18, 15, 23, 7, 23, 15, 36, 8, 9, 19, 11, 34, 38, 19, 24, 11, 42, 24, 18, 48, 53, 15, 10, 72, 9, 11, 10, 21, 68, 11, 16, 29, 90, 7, 68, 36, 15, 20, 81, 21, 28, 83, 8, 77, 45, 6, 37, 18, 85, 12, 126, 7, 29, 48, 34, 102, 10, 22, 28, 80, 26, 105, 11, 16, 9, 105, 123

Offset

1,1

Links

Table of n, a(n) for n=1..73.

Example

a(8)=7+3+5=15.
a(9)=2+4+17=23.
a(10)=2+3+2=7.
a(11)=19+2+2=23.
a(12)=5+3+7=15.
a(13)=2+11+23=36,
etc.

Crossrefs

Cf. A141287, A141261, A136735.

Sequence in context: A226133 A125971 A322158 * A087022 A315951 A081392

Adjacent sequences: A143707 A143708 A143709 * A143711 A143712 A143713

Keyword

nonn,less

Author

Juri-Stepan Gerasimov, Nov 13 2008

Extensions

a(43) corrected by R. J. Mathar, Apr 14 2010

Status

approved