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Search: id:A032131
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A032131 Shifts left 2 places under "BIK" (reversible, indistinct, unlabeled) transform. +0
1
1, 1, 1, 2, 3, 7, 13, 31, 66, 160, 369, 907, 2191, 5461, 13558, 34209, 86426, 220359, 563475, 1449282, 3739365, 9688104, 25173917, 65621067, 171498288, 449361649, 1180078602, 3105740797, 8189749105, 21636207962 (list; graph; listen)
OFFSET

1,4
CROSSREFS

Sequence in context: A124430 A002013 A003120 this_sequence A007827 A129859 A056953

Adjacent sequences: A032128 A032129 A032130 this_sequence A032132 A032133 A032134

KEYWORD

nonn

AUTHOR

Christian G. Bower (bowerc(AT)usa.net)

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Last modified December 7 08:40 EST 2009. Contains 170430 sequences.

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