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Search: id:A047069
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A047069 T(2n,n), array T as in A047060. +0
1
1, 2, 9, 50, 292, 1771, 10935, 68383, 431899, 2748889, 17603784, 113299016, 732218152, 4748569471, 30886615145, 201412503840, 1316341486144, 8619854957691, 56543637427530, 371482805504922, 2443971459882487 (list; graph; listen)
OFFSET

0,2
CROSSREFS

Sequence in context: A014372 A138416 A055997 this_sequence A020087 A079836 A026945

Adjacent sequences: A047066 A047067 A047068 this_sequence A047070 A047071 A047072

KEYWORD

nonn

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.

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