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A046409 Palindromes with exactly 3 distinct palindromic prime factors. 3
66, 606, 2222, 2882, 3333, 5555, 6886, 7777, 26462, 39693, 145541, 167761, 226622, 248842, 339933, 347743, 662266, 664466, 668866, 682286, 993399, 996699, 2080802, 2284822, 6080806, 6264626, 9396939, 11444411, 11666611, 11777711 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

CROSSREFS

Cf. A046329, A046377.

Sequence in context: A202639 A175260 A129218 * A128952 A101093 A056468

Adjacent sequences:  A046406 A046407 A046408 * A046410 A046411 A046412

KEYWORD

nonn,base

AUTHOR

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

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Last modified February 14 23:16 EST 2012. Contains 205687 sequences.