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 A199208 9*4^n+1. 1
 10, 37, 145, 577, 2305, 9217, 36865, 147457, 589825, 2359297, 9437185, 37748737, 150994945, 603979777, 2415919105, 9663676417, 38654705665, 154618822657, 618475290625, 2473901162497, 9895604649985, 39582418599937 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 LINKS Vincenzo Librandi, Table of n, a(n) for n = 0..1000 Index entries for linear recurrences with constant coefficients, signature (5,-4). FORMULA a(n) = 4*a(n-1)-3. a(n) = 5*a(n-1)-4*a(n-2). G.f.: (10-13*x)/((1-x)*(1-4*x)).  - Bruno Berselli, Nov 04 2011 PROG (MAGMA) [9*4^n+1: n in [0..30]]; CROSSREFS Sequence in context: A212755 A048480 A116970 * A110528 A208674 A137280 Adjacent sequences:  A199205 A199206 A199207 * A199209 A199210 A199211 KEYWORD nonn,easy AUTHOR Vincenzo Librandi, Nov 04 2011 STATUS approved

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Last modified November 29 02:34 EST 2020. Contains 338756 sequences. (Running on oeis4.)