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 A179477 Antonym of A014824: each term is 10 times the previous term minus n. 1
 10, 99, 988, 9877, 98766, 987655, 9876544, 98765433, 987654322, 9876543211, 98765432100, 987654320989, 9876543209878, 98765432098767, 987654320987656, 9876543209876545, 98765432098765434, 987654320987654323, 9876543209876543212, 98765432098765432101 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 LINKS Colin Barker, Table of n, a(n) for n = 0..998 Index entries for linear recurrences with constant coefficients, signature (12,-21,10). FORMULA a(n) + A014824(n) = 10^(n+1). From Colin Barker, Oct 03 2015: (Start) a(n) = 12*a(n-1) - 21*a(n-2) + 10*a(n-3) for n>2. G.f.: -(10*x^2-21*x+10) / ((x-1)^2*(10*x-1)). (End) a(n) = (10 + 2^(5+n)*5^(2+n) + 9*n)/81. - Colin Barker, Mar 25 2017 MATHEMATICA Join[{a=10, b=99}, Table[c=11*b-10*a-1; a=b; b=c, {n, 60}]] (* Vladimir Joseph Stephan Orlovsky, Jan 20 2011*) Join[{a=10}, Table[a=10a-n, {n, 60}] (* T. D. Noe, Jan 20 2011 *) PROG (PARI) Vec(-(10*x^2-21*x+10)/((x-1)^2*(10*x-1)) + O(x^30)) \\ Colin Barker, Oct 03 2015 CROSSREFS Cf. A014824. Sequence in context: A322054 A179558 A179556 * A179555 A105694 A179557 Adjacent sequences: A179474 A179475 A179476 * A179478 A179479 A179480 KEYWORD nonn,easy AUTHOR Mark Dols, Jul 16 2010 STATUS approved

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Last modified October 2 22:30 EDT 2023. Contains 365841 sequences. (Running on oeis4.)