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Search: id:A046372
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A046372 Odd numbers with exactly 2 palindromic prime factors (counted with multiplicity). +0
2
9, 15, 21, 25, 33, 35, 49, 55, 77, 121, 303, 393, 453, 505, 543, 573, 655, 707, 755, 905, 917, 939, 955, 1057, 1059, 1111, 1119, 1149, 1267, 1337, 1441, 1565, 1661, 1765, 1865, 1915, 1991, 2101, 2181, 2191, 2271, 2361, 2391, 2471, 2611, 2681, 2757, 2787 (list; graph; listen)
OFFSET

1,1

CROSSREFS

Cf. A046315, A046404.

Sequence in context: A046350 A046337 A046315 this_sequence A025045 A107987 A031879

Adjacent sequences: A046369 A046370 A046371 this_sequence A046373 A046374 A046375

KEYWORD

nonn,base

AUTHOR

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

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Last modified December 7 08:40 EST 2009. Contains 170430 sequences.


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