OFFSET
1,2
FORMULA
EXAMPLE
a(1)=1 because 1^2+5^2+prime(1)^2=3*1*5*prime(1); a(2)=3 because 1^2+2^2+prime(3)^2=3*1*2*prime(3); a(3)=6 because 29^2+34^2+prime(6)^2=3*29*34*prime(6); a(4)=10 because 13^2+34^2=prime(10)^2=3*13*34*prime(10).
CROSSREFS
KEYWORD
nonn
AUTHOR
Juri-Stepan Gerasimov, Mar 03 2010
EXTENSIONS
Extended beyond 960 by R. J. Mathar, Mar 09 2010
STATUS
approved