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Search: id:A005032
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A005032 7*3^n. +0
3
7, 21, 63, 189, 567, 1701, 5103, 15309, 45927, 137781, 413343, 1240029, 3720087, 11160261, 33480783, 100442349, 301327047, 903981141, 2711943423, 8135830269, 24407490807, 73222472421, 219667417263 (list; graph; listen)
OFFSET

0,1
LINKS

Milan Janjic, Enumerative Formulas for Some Functions on Finite Sets

Tanya Khovanova, Recursive Sequences

CROSSREFS

Sequence in context: A088656 A146139 A083596 this_sequence A082541 A113859 A146533

Adjacent sequences: A005029 A005030 A005031 this_sequence A005033 A005034 A005035

KEYWORD

nonn

AUTHOR

njas

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Last modified December 2 15:58 EST 2008. Contains 150992 sequences.

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