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A085353 Expansion of (1-5x)/((1-6x)(1-7x)). 2
1, 8, 62, 470, 3506, 25838, 188642, 1367150, 9849986, 70629518, 504484322, 3591856430, 25505792066, 180717326798, 1278081981602, 9024938035310, 63644751231746, 448334368529678, 3155267239152482, 22188430630735790 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,2
COMMENTS
Binomial transform of A085352.
LINKS
FORMULA
a(n) = 2*7^n-6^n.
a(n) = 2*A000420(n) - A000400(n). - Michel Marcus, Dec 03 2013
MAPLE
A085353:=n->2*7^n - 6^n; seq(A085353(n), n=0..20); # Wesley Ivan Hurt, Dec 02 2013
MATHEMATICA
Table[2*7^n - 6^n, {n, 0, 20}] (* Wesley Ivan Hurt, Dec 02 2013 *)
CoefficientList[Series[(1-5x)/((1-6x)(1-7x)), {x, 0, 30}], x] (* Harvey P. Dale, Apr 22 2019 *)
CROSSREFS
Cf. A085352.
Sequence in context: A284225 A229011 A126628 * A125396 A163444 A190975
KEYWORD
easy,nonn
AUTHOR
Paul Barry, Jun 24 2003
STATUS
approved

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Last modified May 26 18:12 EDT 2024. Contains 372840 sequences. (Running on oeis4.)