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A081122 10th binomial transform of (1,1,0,0,0,0,......). 3
1, 11, 120, 1300, 14000, 150000, 1600000, 17000000, 180000000, 1900000000, 20000000000, 210000000000, 2200000000000, 23000000000000, 240000000000000, 2500000000000000, 26000000000000000, 270000000000000000 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

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

FORMULA

a(n) = 20*a(n-1)-100*a(n-2), a(0)=1, a(1)=11.

a(n) = (n+10)*10^(n-1).

G.f.: (1-9x)/(1-10x)^2.

MATHEMATICA

CoefficientList[Series[(1 - 9 x) / (1 - 10 x)^2, {x, 0, 20}], x] (* Vincenzo Librandi, Aug 06 2013 *)

PROG

(MAGMA) [(n+10)*10^(n-1): n in [0..25]]; // Vincenzo Librandi, Aug 06 2013

CROSSREFS

Cf. A081109, A081108.

Sequence in context: A060498 A274119 A171316 * A004190 A089707 A223391

Adjacent sequences:  A081119 A081120 A081121 * A081123 A081124 A081125

KEYWORD

easy,nonn

AUTHOR

Paul Barry, Mar 07 2003

STATUS

approved

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Last modified October 23 23:11 EDT 2019. Contains 328379 sequences. (Running on oeis4.)