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A067424
Ninth column of triangle A067417.
3
1, 11, 297, 8019, 216513, 5845851, 157837977, 4261625379, 115063885233, 3106724901291, 83881572334857, 2264802453041139, 61149666232110753, 1651040988266990331, 44578106683208738937, 1203608880446635951299
OFFSET
0,2
FORMULA
a(n) = A067417(n+8, 8).
a(n) = 11*(3*9)^(n-1), n >= 1, a(0)=1.
G.f.: (1-16*x)/(1-27*x).
E.g.f.: (16 + 11*exp(27*x))/27. - Stefano Spezia, Sep 30 2022
MATHEMATICA
CoefficientList[Series[(1-16x)/(1-27x), {x, 0, 30}], x] (* or *) LinearRecurrence[{27}, {1, 11}, 20] (* Harvey P. Dale, Apr 20 2022 *)
PROG
(Magma) [Ceiling(11*(3*9)^(n-1)): n in [0..20]]; // Vincenzo Librandi, Oct 02 2011
CROSSREFS
Cf. A067417, A067423 (eighth column), A009971 (powers of 27).
Sequence in context: A350938 A165390 A213256 * A001538 A101269 A012184
KEYWORD
nonn,easy
AUTHOR
Wolfdieter Lang, Jan 25 2002
STATUS
approved