1,1

Among the first 51 terms only three terms are prime: SmBackConSq(2), SmBackConSq(3), SmBackConSq(14), found by Micha Fleuren.

M. Fleuren, Smarandache Back Concatenated Squares.

Cf. A038397.

Sequence in context: A114529 A038397 A104349 this_sequence A059762 A069362 A016093

Adjacent sequences: A091311 A091312 A091313 this_sequence A091315 A091316 A091317

nonn,bref

M. Grete (martha.grete(AT)web.de), Feb 21 2004