OFFSET
1,1
EXAMPLE
a(8)=7*(3+5)=7*8=56.
a(9)=2*(4+17)=2*21=42.
a(10)=2*(3+2)=2*5=10.
a(11)=19*(2+2)=19*4=40.
a(12)=5*(3+7)=5*10=50.
a(13)=2*(11+23)=2*34=68,
etc.
CROSSREFS
KEYWORD
nonn
AUTHOR
Juri-Stepan Gerasimov, Nov 13 2008
EXTENSIONS
Corrected (40 replaced by 76, 18 by 12, 90 by 70 etc.) by R. J. Mathar, Apr 18 2010
STATUS
approved