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A067408
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Eighth column of triangle A067402.
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2
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1, 15, 960, 61440, 3932160, 251658240, 16106127360, 1030792151040, 65970697666560, 4222124650659840, 270215977642229760, 17293822569102704640, 1106804644422573096960, 70835497243044678205440
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OFFSET
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0,2
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LINKS
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Table of n, a(n) for n=0..13.
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FORMULA
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a(n)= A067402(n+7, 7).
G.f. (1-49*x)/(1-64*x).
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MATHEMATICA
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LinearRecurrence[{64}, {1, 15}, 20] (* or *) Join[{1}, NestList[64#&, 15, 20]] (* Harvey P. Dale, Aug 25 2016 *)
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CROSSREFS
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Cf. A067407 (seventh column), A067409 (ninth column).
Sequence in context: A231121 A103639 A055413 * A274713 A229840 A102102
Adjacent sequences: A067405 A067406 A067407 * A067409 A067410 A067411
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KEYWORD
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nonn,easy
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AUTHOR
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Wolfdieter Lang, Jan 25 2002
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EXTENSIONS
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Incorrect formula deleted by Harvey P. Dale, Aug 25 2016
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STATUS
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approved
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