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Search: id:A165611
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| A165611 |
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The number of n-digit non-papaya numbers. |
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+0
5
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OFFSET
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1,3
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COMMENT
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These are numbers that are neither palindromes not concatenations of two palindromes. Three digit numbers that are non-papaya are numbers with all distinct digits. There are 9*9*8 of them: 648. a(n) = A052268(n) - A165135(n).
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LINKS
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Tanya Khovanova, Papaya Words and Numbers [From Tanya Khovanova (tanyakh(AT)yahoo.com), Oct 01 2009]
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CROSSREFS
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A165135, A165136, A165137, A165610 [From Tanya Khovanova (tanyakh(AT)yahoo.com), Oct 01 2009]
Sequence in context: A034281 A157432 A006914 this_sequence A034619 A035755 A107551
Adjacent sequences: A165608 A165609 A165610 this_sequence A165612 A165613 A165614
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KEYWORD
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base,nonn,uned
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AUTHOR
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Tanya Khovanova (tanyakh(AT)yahoo.com), Sep 22 2009
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