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A055218 T(2n+2,n), array T as in A055216. +0
1
1, 4, 15, 51, 168, 540, 1711, 5365, 16698, 51679, 159250, 489048, 1497681, 4576140, 13955895, 42493677, 129211818, 392441049, 1190716836, 3609608838, 10933915743, 33097421223, 100126350090, 302737691646, 914897836063 (list; graph; listen)
OFFSET

0,2
CROSSREFS

Sequence in context: A026328 A014532 A094705 this_sequence A107307 A005492 A003013

Adjacent sequences: A055215 A055216 A055217 this_sequence A055219 A055220 A055221

KEYWORD

nonn

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu), May 07 2000

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

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