OFFSET
0,1
LINKS
Index entries for linear recurrences with constant coefficients, signature (7, -21, 35, -35, 21, -7, 1).
FORMULA
a(0)=1000000, a(1)=113379904, a(2)=1544804416, a(3)=9474296896, a(4)=38068692544, a(5)=117649000000, a(6)=304006671424, a(n)= 7*a(n-1)- 21*a(n-2)+35*a(n-3)-35*a(n-4)+21*a(n-5)-7*a(n-6)+a(n-7) [From Harvey P. Dale, Aug 27 2011]
G.f.: -((64*(15625+1662186*x+12064767*x^2+15728812*x^3+4003287*x^4+ 117642*x^5+x^6))/(x-1)^7). - Harvey P. Dale, Aug 27 2011
MATHEMATICA
(12Range[0, 30]+10)^6 (* Harvey P. Dale, Aug 27 2011 *)
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
STATUS
approved