OFFSET
1,1
COMMENTS
sequence of the primes given in A104995
EXAMPLE
1*2^2+1*2+1=7 prime so k(1)=2
2*2^2+2*2+1=13 prime > 7 so k(2)=2
3*2^2+3*2+1=19 prime > 13 so k(3)=2
5*2^2+5*2+1=31 prime > 19 so k(5)=2
CROSSREFS
KEYWORD
nonn
AUTHOR
Pierre CAMI, Mar 31 2005
STATUS
approved