1,1

Conjecture: there are only 4 primes in this sequence.

Table of n, a(n) for n=1..4.

2*3*5-7 = 23 is prime, 2*3*5+7 = 37 is prime

Cf. A087715, A087716, A087728.

Sequence in context: A175866 A227500 A265814 * A055045 A213741 A184825

Adjacent sequences: A087711 A087712 A087713 * A087715 A087716 A087717

nonn

Pierre CAMI, Sep 28 2003

approved