1,1

223=2*19+3*23+4*29,

569=2*59+3*61+4*67,

71011=2*7879+3*7883+4*7901,

940483=2*104479+3*104491+4*104513,

11694107=2*1299341+3*1299343+4*1299349,

139372099=2*15485773+3*15485783+4*139372099,

1614810061=2*179423329+3*179423333+4*179423351,

18342658199=2*2038073129+3*2038073131+4*2038073137,

205215855233=2*22801761659+3*22801761677+4*22801761721.

Apparently there are infinitely many such primes.

Cf. A000040.

Sequence in context: A102950 A118818 A142437 this_sequence A142773 A096660 A094459

Adjacent sequences: A138662 A138663 A138664 this_sequence A138666 A138667 A138668

nonn

Zak Seidov (zakseidov(AT)yahoo.com), Mar 26 2008