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A115670 Semiprimes (A001358) whose digit reversal is prime. 0
14, 34, 35, 38, 74, 91, 95, 106, 118, 119, 133, 134, 142, 145, 146, 166, 194, 301, 305, 334, 346, 358, 361, 362, 365, 371, 377, 382, 386, 391, 395, 703, 706, 713, 721, 731, 745, 746, 749, 755, 758, 763, 778, 779, 785, 791, 793, 799, 901, 905, 914, 917, 922 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

EXAMPLE

35=5*7 is semiprime and 53 is prime.

CROSSREFS

Cf. A001358, A085778.

Sequence in context: A018949 A007365 A065933 * A112878 A175559 A158899

Adjacent sequences:  A115667 A115668 A115669 * A115671 A115672 A115673

KEYWORD

nonn,base

AUTHOR

Giovanni Resta (g.resta(AT)iit.cnr.it), Jan 31 2006

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Last modified February 14 18:33 EST 2012. Contains 205663 sequences.