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Search: id:A050147
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A050147 a(n) = T(n,n-1), array T as in A050143. Also T(2n+1,n), array T as in A055807. +0
3
1, 3, 12, 56, 280, 1452, 7700, 41456, 225648, 1238420, 6840988, 37986984, 211842696, 1185635388, 6655993380, 37463920608, 211350457824, 1194706644516, 6765300359468, 38370431711000, 217931108199672 (list; graph; listen)
OFFSET

1,2
CROSSREFS

Sequence in context: A120920 A064314 A107318 this_sequence A120921 A074533 A000257

Adjacent sequences: A050144 A050145 A050146 this_sequence A050148 A050149 A050150

KEYWORD

nonn

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

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Last modified September 7 15:23 EDT 2008. Contains 143483 sequences.

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