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Search: id:A018781
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A018781 Duplicate of A003523. +0
1
1, 3, 11, 31, 33, 93, 341, 1023 (list; graph; listen)
OFFSET

1,2
CROSSREFS

Adjacent sequences: A018778 A018779 A018780 this_sequence A018782 A018783 A018784

Sequence in context: A009131 A003554 A003523 this_sequence A119215 A057172 A071568

KEYWORD

dead

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Last modified October 10 20:39 EDT 2008. Contains 144831 sequences.

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