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A046400 Numbers with exactly 2 distinct palindromic prime factors. 4
6, 10, 14, 15, 21, 22, 33, 35, 55, 77, 202, 262, 302, 303, 362, 382, 393, 453, 505, 543, 573, 626, 655, 706, 707, 746, 755, 766, 905, 917, 939, 955, 1057, 1059, 1111, 1119, 1149, 1267, 1337, 1441, 1454, 1514, 1565, 1574, 1594, 1661, 1765, 1838, 1858, 1865 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Amiram Eldar, Table of n, a(n) for n = 1..10000

MATHEMATICA

Select[Range[2000], (f = FactorInteger[#])[[;; , 2]] == {1, 1} && And @@ PalindromeQ /@ f[[;; , 1]] &] (* Amiram Eldar, Apr 03 2021 *)

CROSSREFS

Cf. A001358, A046368.

Sequence in context: A180074 A338905 A093772 * A100660 A088709 A225706

Adjacent sequences:  A046397 A046398 A046399 * A046401 A046402 A046403

KEYWORD

nonn,base

AUTHOR

Patrick De Geest, Jun 15 1998

STATUS

approved

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Last modified July 28 23:26 EDT 2021. Contains 346340 sequences. (Running on oeis4.)