

A334140


Numbers that can be written as a product of distinct palindromes.


1



0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 18, 20, 21, 22, 24, 27, 28, 30, 32, 33, 35, 36, 40, 42, 44, 45, 48, 54, 55, 56, 60, 63, 64, 66, 70, 72, 77, 80, 84, 88, 90, 96, 99, 101, 105, 108, 110, 111, 112, 120, 121, 126, 131, 132, 135, 140
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OFFSET

1,3


LINKS

David A. Corneth, Table of n, a(n) for n = 1..10000
Eric Weisstein's World of Mathematics, Palindromic Number
Index entries for sequences related to palindromes


MATHEMATICA

ok[n_, w_: {}] := n <= 1  AnyTrue[ Divisors@ n, ! MemberQ[w, #] && PalindromeQ[#] && ok[n/#, Append[w, #]] &]; Select[Range[0, 140], ok] (* Giovanni Resta, Apr 15 2020 *)


CROSSREFS

Cf. A002113, A033620, A084034, A115683, A140332, A334131.
Sequence in context: A155182 A096076 A108864 * A338883 A055722 A028830
Adjacent sequences: A334137 A334138 A334139 * A334141 A334142 A334143


KEYWORD

nonn,base


AUTHOR

Ilya Gutkovskiy, Apr 15 2020


STATUS

approved



