1,1

sequence of k(n) given in A104994

Table of n, a(n) for n=1..41.

1*2^2+1*2+1=7 prime with k(1)=2

2*2^2+2*2+1=13 prime > 7 with k(2)=2

3*2^2+3*2+1=19 prime > 13 with k(3)=2

5*2^2+5*2+1=31 prime > 19 with k(5)=2

Cf. A104994.

Sequence in context: A005762 A212454 A266731 * A107744 A254762 A275681

Adjacent sequences: A104992 A104993 A104994 * A104996 A104997 A104998

nonn

Pierre CAMI, Mar 31 2005

approved