1,1

(PARI) nfactp2d2(n) = { for(x=1, n, y=floor((x!+ 3)/3); if(isprime(y), print1(y", ")) ) }

Cf. A089085.

Sequence in context: A092168 A080347 A106978 this_sequence A057650 A159249 A087544

Adjacent sequences: A089128 A089129 A089130 this_sequence A089132 A089133 A089134

nonn

Cino Hilliard (hillcino368(AT)gmail.com), Dec 05 2003

The next term is too large to include.