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Search: id:A047012
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A047012 T(n,n), array T given by A047010. +0
1
1, 1, 3, 9, 31, 111, 403, 1488, 5559, 20932, 79333, 302277, 1156703, 4442257, 17112720, 66096604, 255878503, 992570025, 3857092836, 15012261225, 58512405321, 228352024155, 892205043527, 3489652882944, 13662123455511 (list; graph; listen)
OFFSET

0,3
CROSSREFS

Sequence in context: A123222 A112566 A128082 this_sequence A120305 A049170 A049174

Adjacent sequences: A047009 A047010 A047011 this_sequence A047013 A047014 A047015

KEYWORD

nonn

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.

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