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Search: id:A062687
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| A062687 |
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Numbers all of whose divisors are palindromic. |
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+0
8
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| 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 22, 33, 44, 55, 66, 77, 88, 99, 101, 121, 131, 151, 181, 191, 202, 242, 262, 303, 313, 353, 363, 373, 383, 393, 404, 484, 505, 606, 626, 707, 727, 757, 787, 797, 808, 909, 919, 929, 939, 1111, 1331, 1441, 1661, 1991, 2222, 2662
(list; graph; listen)
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OFFSET
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1,2
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EXAMPLE
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44 has divisors 1, 2, 4, 11, 22 and 44, all palindromes, so 44 is a member.
n=808: divisors={1,2,4,8,101,202,404,808}.
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CROSSREFS
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Cf. A087991, A084325.
Sequence in context: A084982 A110785 A087992 this_sequence A109882 A109872 A030285
Adjacent sequences: A062684 A062685 A062686 this_sequence A062688 A062689 A062690
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KEYWORD
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base,easy,nonn
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AUTHOR
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Erich Friedman (efriedma(AT)stetson.edu), Jul 04 2001
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