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A046331

Palindromes with exactly 5 prime factors (counted with multiplicity).

252, 272, 464, 616, 656, 696, 828, 848, 888, 2552, 4004, 4554, 4664, 4884, 5445, 5775, 6006, 6996, 8118, 8228, 8778, 8888, 9009, 18081, 18981, 20202, 20502, 21012, 21812, 22022, 23432, 23532, 24642, 25552, 25652, 26862, 27272, 27672, 28182

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OFFSET

1,1

LINKS

Harvey P. Dale, Table of n, a(n) for n = 1..1000

MATHEMATICA

Select[Range[30000], #==IntegerReverse[#]&&PrimeOmega[#]==5&] (* The program uses the IntegerReverse function from Mathematica version 10 *) (* Harvey P. Dale, Jul 16 2016 *)

CROSSREFS

Cf. A014614, A046318.

Sequence in context: A113899 A045182 A330616 * A066695 A372755 A104396

Adjacent sequences: A046328 A046329 A046330 * A046332 A046333 A046334

KEYWORD

nonn,base

AUTHOR

Patrick De Geest, Jun 15 1998

STATUS

approved