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 A228293 a(n) = Sum_{k=1..9} n^k. 2
 0, 9, 1022, 29523, 349524, 2441405, 12093234, 47079207, 153391688, 435848049, 1111111110, 2593742459, 5628851292, 11488207653, 22250358074, 41189313615, 73300775184, 125999618777, 210027483918, 340614792099, 538947368420, 833994048909, 1264758228162 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 LINKS Alois P. Heinz, Table of n, a(n) for n = 0..1000 Index entries for linear recurrences with constant coefficients, signature (10, -45, 120, -210, 252, -210, 120, -45, 10, -1). FORMULA G.f.: x*(x^8 +332*x^7 +11388*x^6 +77356*x^5 +153950*x^4 +99204*x^3 +19708*x^2 +932*x+9) / (x-1)^10. a(1) = 9, else a(n) = (n^10-n)/(n-1). a(0)=0, a(1)=9, a(2)=1022, a(3)=29523, a(4)=349524, a(5)=2441405, a(6)=12093234, a(7)=47079207, a(8)=153391688, a(9)=435848049, 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). - Harvey P. Dale, Dec 12 2013 MAPLE a:= n-> `if`(n=1, 9, (n^10-n)/(n-1)): seq(a(n), n=0..30); MATHEMATICA Table[Total[n^Range[9]], {n, 0, 30}] (* or *) LinearRecurrence[ {10, -45, 120, -210, 252, -210, 120, -45, 10, -1}, {0, 9, 1022, 29523, 349524, 2441405, 12093234, 47079207, 153391688, 435848049}, 30] (* Harvey P. Dale, Dec 12 2013 *) CROSSREFS Column k=9 of A228275. Sequence in context: A100601 A260029 A266321 * A197781 A197612 A004809 Adjacent sequences:  A228290 A228291 A228292 * A228294 A228295 A228296 KEYWORD nonn,easy AUTHOR Alois P. Heinz, Aug 19 2013 STATUS approved

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Last modified August 12 16:32 EDT 2022. Contains 356077 sequences. (Running on oeis4.)