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A016851 (5n)^3. 0
0, 125, 1000, 3375, 8000, 15625, 27000, 42875, 64000, 91125, 125000, 166375, 216000, 274625, 343000, 421875, 512000, 614125, 729000, 857375, 1000000, 1157625, 1331000, 1520875, 1728000, 1953125 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

FORMULA

a(0)=0, a(1)=125, a(2)=1000, a(3)=3375, a(n)=4*a(n-1)-6*a(n-2)+ 4*a(n-3)- a(n-4) [From Harvey P. Dale, June 18 2011]

G.f.: (125*(x+4*x^2+x^3))/(x-1)^4 [From Harvey P. Dale, June 18 2011]

MATHEMATICA

(5Range[0, 30])^3 (* or *) LinearRecurrence[{4, -6, 4, -1}, {0, 125, 1000, 3375}, 30] (* From Harvey P. Dale, June 18 2011 *)

CROSSREFS

Sequence in context: A016815 A204611 A088896 * A204795 A000526 A016971

Adjacent sequences:  A016848 A016849 A016850 * A016852 A016853 A016854

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

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Last modified February 14 10:16 EST 2012. Contains 205614 sequences.