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 A083585 (8*5^n - 5*2^n)/3. 2
 1, 10, 60, 320, 1640, 8280, 41560, 208120, 1041240, 5207480, 26039960, 130204920, 651034840, 3255194680, 16276014360, 81380153720, 406900932440, 2034504989880, 10172525604760, 50862629334520, 254313149294040 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 COMMENTS Binomial transform of A083854. LINKS Table of n, a(n) for n=0..20. Index entries for linear recurrences with constant coefficients, signature (7,-10). FORMULA a(n) = (8*5^n-5*2^n)/3. G.f. (1+3x)/((1-2x)(1-5x)). E.g.f. (8*exp(5x) - 5*exp(2x))/3. MATHEMATICA LinearRecurrence[{7, -10}, {1, 10}, 20] (* T. D. Noe, Aug 06 2013 *) CROSSREFS Sequence in context: A112502 A293081 A292489 * A250575 A155633 A368525 Adjacent sequences: A083582 A083583 A083584 * A083586 A083587 A083588 KEYWORD easy,nonn AUTHOR Paul Barry, May 01 2003 STATUS approved

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Last modified May 30 18:38 EDT 2024. Contains 372971 sequences. (Running on oeis4.)