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Search: id:A027101
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A027101 a(n) = diagonal sum of right justified array T given by A027082. +0
1
1, 1, 3, 9, 18, 49, 127, 331, 883, 2376, 6439, 17591, 48347, 133589, 370883, 1033997, 2893498, 8124303, 22880569, 64616728, 182943204, 519146325, 1476337528, 4206621803, 12008000771, 34335363519, 98332343337, 282026580873 (list; graph; listen)
OFFSET

0,3
CROSSREFS

Sequence in context: A057578 A015635 A062882 this_sequence A015656 A056372 A101652

Adjacent sequences: A027098 A027099 A027100 this_sequence A027102 A027103 A027104

KEYWORD

nonn

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

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Last modified November 30 13:13 EST 2009. Contains 167758 sequences.

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