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A067408
Eighth column of triangle A067402.
2
1, 15, 960, 61440, 3932160, 251658240, 16106127360, 1030792151040, 65970697666560, 4222124650659840, 270215977642229760, 17293822569102704640, 1106804644422573096960, 70835497243044678205440, 4533471823554859405148160, 290142196707511001929482240, 18569100589280704123486863360
OFFSET
0,2
FORMULA
a(n) = A067402(n+7, 7).
G.f.: (1-49*x)/(1-64*x).
E.g.f.: (49 + 15*exp(64*x))/64. - Stefano Spezia, Sep 30 2022
MATHEMATICA
LinearRecurrence[{64}, {1, 15}, 20] (* or *) Join[{1}, NestList[64#&, 15, 20]] (* Harvey P. Dale, Aug 25 2016 *)
CROSSREFS
Cf. A067407 (seventh column), A067409 (ninth column).
Cf. A067402.
Sequence in context: A231121 A103639 A055413 * A274713 A229840 A102102
KEYWORD
nonn,easy
AUTHOR
Wolfdieter Lang, Jan 25 2002
EXTENSIONS
Incorrect formula deleted by Harvey P. Dale, Aug 25 2016
STATUS
approved