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A032083 Shifts left 2 places under "BHJ" (reversible, identity, labeled) transform. 0
1, 1, 1, 1, 4, 17, 189, 1586, 19740, 226874, 3292668, 47746676, 809546512, 14151766886, 277125258626, 5666164695014, 126471592770198, 2959743309058116, 74377876827534538, 1960097093923279152 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,5

LINKS

Table of n, a(n) for n=1..20.

CROSSREFS

Sequence in context: A094545 A156633 A032073 * A126776 A214143 A015489

Adjacent sequences:  A032080 A032081 A032082 * A032084 A032085 A032086

KEYWORD

nonn,eigen

AUTHOR

Christian G. Bower

STATUS

approved

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Last modified February 22 19:36 EST 2018. Contains 299469 sequences. (Running on oeis4.)