A016893 (5n+3)^9.

19683, 134217728, 10604499373, 198359290368, 1801152661463, 10578455953408, 46411484401953, 165216101262848, 502592611936843, 1352605460594688, 3299763591802133, 7427658739644928, 15633814156853823

Offset

0,1

Links

Table of n, a(n) for n=0..12.

Index entries for linear recurrences with constant coefficients, signature (10, -45, 120, -210, 252, -210, 120, -45, 10, -1).

Formula

a(0)=19683, a(1)=134217728, a(2)=10604499373, a(3)=198359290368, a(4)=1801152661463, a(5)=10578455953408, a(6)=46411484401953, a(7)=165216101262848, a(8)=502592611936843, a(9)=1352605460594688, a(n)=10*a(n-1)-45*a(n-2)+120*a(n-3)-210*a(n-4)+252*a(n-5)- 210*a(n-6)+ 120*a(n-7)-45*a(n-8)+10*a(n-9)-a(n-10) [From Harvey P. Dale, Dec 15 2011]

Mathematica

(5*Range[0, 20]+3)^9 (* Harvey P. Dale, Dec 15 2011 *)

Crossrefs

Sequence in context: A250593 A016773 A016845 * A016953 A017025 A017109

Adjacent sequences: A016890 A016891 A016892 * A016894 A016895 A016896

Keyword

nonn,easy

Author

N. J. A. Sloane.

Status

approved