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A083331 (3*5^n-2*4^n+3^n)/2. 1
1, 5, 26, 137, 722, 3785, 19706, 101897, 523682, 2677385, 13629386, 69136457, 349699442, 1764742985, 8889229466, 44709799817, 224608392002, 1127293880585, 5653520131946, 28335932715977, 141953379225362, 710862920970185 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

COMMENTS

Binomial transform of A083330

FORMULA

a(n)=(3*5^n-2*4^n+3^n)/2 G.f. (1-7x+13x^2)/(2(1-3x)(1-4x)(1-5x)) E.g.f. (3exp(5x)-2exp(4x)+exp(3x))/2

CROSSREFS

Sequence in context: A022032 A052918 A018903 * A076025 A161731 A049607

Adjacent sequences:  A083328 A083329 A083330 * A083332 A083333 A083334

KEYWORD

easy,nonn

AUTHOR

Paul Barry (pbarry(AT)wit.ie), Apr 27 2003

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Last modified February 17 15:44 EST 2012. Contains 206050 sequences.