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A067415
Eighth column of triangle A067410.
3
1, 9, 144, 2304, 36864, 589824, 9437184, 150994944, 2415919104, 38654705664, 618475290624, 9895604649984, 158329674399744, 2533274790395904, 40532396646334464, 648518346341351424
OFFSET
0,2
FORMULA
a(n)= A067410(n+7, 7). a(n)= 9*16^(n-1), n>=1, a(0)=1.
G.f.: (1-7*x)/(1-16*x).
CROSSREFS
Cf. A067414 (seventh column), A067416 (ninth column), A001025 (powers of 16).
Sequence in context: A281789 A134176 A325173 * A069134 A034829 A162993
KEYWORD
nonn,easy
AUTHOR
Wolfdieter Lang, Jan 25 2002
STATUS
approved