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A165150 a(n) = (3*10^n-6^n)/2. 3
1, 12, 132, 1392, 14352, 146112, 1476672, 14860032, 149160192, 1494961152, 14969766912, 149818601472, 1498911608832, 14993469652992, 149960817917952, 1499764907507712, 14998589445046272, 149991536670277632 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

Binomial transform of A165149. Inverse binomial transform of A165151.

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 0..200

FORMULA

a(n) = 16*a(n-1)-60*a(n-2) for n > 1; a(0) = 1, a(1) = 12.

G.f.: (1-4*x)/((1-6*x)*(1-10*x)).

PROG

(MAGMA) [ (3*10^n-6^n)/2: n in [0..17] ];

CROSSREFS

Cf. A165149, A165151.

Sequence in context: A125447 A162767 A003495 * A002921 A199941 A001336

Adjacent sequences:  A165147 A165148 A165149 * A165151 A165152 A165153

KEYWORD

nonn,easy

AUTHOR

Klaus Brockhaus, Sep 15 2009

STATUS

approved

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Last modified April 18 17:10 EDT 2019. Contains 322229 sequences. (Running on oeis4.)