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A046331 Palindromes with exactly 5 prime factors (counted with multiplicity). 2
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 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

CROSSREFS

Cf. A014614, A046318.

Sequence in context: A177809 A113899 A045182 * A066695 A104396 A072443

Adjacent sequences:  A046328 A046329 A046330 * A046332 A046333 A046334

KEYWORD

nonn,base

AUTHOR

Patrick De Geest (pdg(AT)worldofnumbers.com), Jun 15 1998.

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Last modified February 15 16:56 EST 2012. Contains 205825 sequences.