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A083299 a(n) = (4*6^n + (-4)^n)/5. 3
1, 4, 32, 160, 1088, 6016, 38144, 220672, 1356800, 8009728, 48582656, 289398784, 1744781312, 10435133440, 62745018368, 375933239296, 2257746919424, 13537891581952, 81261709230080, 487432816427008, 2925146654375936 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,2
COMMENTS
Binomial transform of A083222.
LINKS
FORMULA
a(n) = (4*6^n + (-4)^n)/5.
G.f.: (1+2*x)/((1-6*x)*(1+4*x)).
E.g.f.: (4*exp(6*x) + exp(-4*x))/5.
PROG
(Magma) [(4*6^n+(-4)^n)/5: n in [0..25]]; // Vincenzo Librandi, Jun 01 2011
CROSSREFS
Cf. A083300.
Sequence in context: A271415 A270619 A326745 * A336448 A259854 A272424
KEYWORD
easy,nonn
AUTHOR
Paul Barry, Apr 24 2003
STATUS
approved

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Last modified May 18 15:24 EDT 2024. Contains 372664 sequences. (Running on oeis4.)