1,1

sequence of the primes given in A104995

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

Cf. A104995.

Sequence in context: A002100 A108352 A036476 this_sequence A118664 A118205 A130277

Adjacent sequences: A104991 A104992 A104993 this_sequence A104995 A104996 A104997

nonn

Pierre CAMI (pierrecami(AT)tele2.fr), Mar 31 2005