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A017646
(12n+10)^6.
0
1000000, 113379904, 1544804416, 9474296896, 38068692544, 117649000000, 304006671424, 689869781056, 1418519112256, 2699554153024, 4826809000000, 8198418170944, 13339032325696, 20924183895616
OFFSET
0,1
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
Sequence in context: A017178 A017274 A017514 * A227138 A227111 A227137
KEYWORD
nonn,easy
AUTHOR
STATUS
approved