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Search: id:A059738
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| 1, 3, 10, 34, 117, 405, 1407, 4899, 17083, 59629, 208284, 727900, 2544751, 8898873, 31125138, 108881166, 380928795, 1332824049, 4663705782
(list; graph; listen)
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OFFSET
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0,2
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LINKS
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J. W. Layman, The Hankel Transform and Some of its Properties, J. Integer Sequences, 4 (2001), #01.1.5.
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FORMULA
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a(n) = Sum[k=0..n, 2^k*A026300(n, k) ], where A026300 is the Motzkin triangle. - R. Stephan, Jan 25 2005
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CROSSREFS
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Sequence in context: A113300 A007052 A048580 this_sequence A094832 A071725 A026016
Adjacent sequences: A059735 A059736 A059737 this_sequence A059739 A059740 A059741
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KEYWORD
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nonn
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AUTHOR
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John W. Layman (layman(AT)math.vt.edu), Feb 09 2001
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