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A142967
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Row sums of triangle A142963.
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1
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1, 3, 15, 111, 1071, 12663, 177255, 2866671, 52587711, 1078805223, 24470577495, 608113846431, 16429992037551, 479502707791383, 15032820820737735, 503852219871917391, 17978716725920562591, 680458944566818819143, 27227452811905815729975, 1148414905826479180087551
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OFFSET
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1,2
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LINKS
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FORMULA
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a(n) = Sum_{m=0..n-1} A142963(n,m).
G.f.: 1 + 2*Sum_{n = 1..inf} a(n)*x^n = 1/(1-2*x/(1-x/(1-2*3*x/(1-2*x/(1-2*5*x/(1-3*x/(1-2*7*x/(1-4*x/(1-...))))))))) (continued fraction). - Philippe Deléham, Feb 12 2013
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CROSSREFS
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KEYWORD
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nonn,easy
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AUTHOR
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STATUS
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approved
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