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A092806 Expansion of (1+8x-9x^2)/(1-3x+3x^2-1001x^3). 0
1, 11, 21, 1031, 14041, 60051, 1170061, 17385071, 108756081, 1445344091, 21412220101, 168765465111, 1888849170121, 26593883436131, 243049333374141, 2540104369105151, 33511642426760161, 336206996880480171 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

COMMENTS

Binomial transform of A092804.

FORMULA

a(n)=91^(n/2)(cos(n*acot(-4sqrt(3)/15))/3+sqrt(3)sin(n*acot(-4sqrt(3)/15))/3)+2*11^n/3

CROSSREFS

Sequence in context: A110383 A123783 A163288 * A138485 A006711 A005151

Adjacent sequences:  A092803 A092804 A092805 * A092807 A092808 A092809

KEYWORD

easy,nonn

AUTHOR

Paul Barry (pbarry(AT)wit.ie), Mar 06 2004

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Last modified February 17 21:13 EST 2012. Contains 206085 sequences.