OFFSET
0,2
LINKS
Index entries for linear recurrences with constant coefficients, signature (29, -308, 1420, -2400).
FORMULA
a(n)=(3*10^(n+3)-10*8^(n+3)+15*6^(n+3)-8*5^(n+3))/12 = (-2^(3*n+7)+2^n*3^(n+4)-5^(n+2)+3*2^n*5^(n+2))/3. [Yahia Kahloune, May 31 2013]
MATHEMATICA
CoefficientList[Series[1/((1-5x)(1-6x)(1-8x)(1-10x)), {x, 0, 30}], x] (* or *) LinearRecurrence[{29, -308, 1420, -2400}, {1, 29, 533, 7945}, 30] (* Harvey P. Dale, Dec 12 2014 *)
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
STATUS
approved