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Search: id:A027067
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A027067 a(n) = T(n,n) + T(n,n+1) + ... + T(n,2n), T given by A027052. +0
1
1, 1, 4, 10, 27, 77, 220, 632, 1821, 5257, 15206, 44068, 127951, 372173, 1084382, 3164498, 9248241, 27064057, 79296978, 232597316, 682960523, 2007206245, 5904191878, 17380855190, 51203234981, 150943862857, 445250129556 (list; graph; listen)
OFFSET

0,3
CROSSREFS

Sequence in context: A052982 A108672 A000495 this_sequence A050262 A032248 A092504

Adjacent sequences: A027064 A027065 A027066 this_sequence A027068 A027069 A027070

KEYWORD

nonn

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

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Last modified September 6 16:04 EDT 2008. Contains 143483 sequences.

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