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 A199316 11*5^n+1. 1
 12, 56, 276, 1376, 6876, 34376, 171876, 859376, 4296876, 21484376, 107421876, 537109376, 2685546876, 13427734376, 67138671876, 335693359376, 1678466796876, 8392333984376, 41961669921876, 209808349609376, 1049041748046876 (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 (6,-5). FORMULA a(n) = 5*a(n-1)-4. a(n) = 6*a(n-1)-5*a(n-2). G.f.: 4*(3-4*x)/((1-x)*(1-5*x)). MATHEMATICA LinearRecurrence[{6, -5}, {12, 56}, 30] (* Harvey P. Dale, Aug 03 2014 *) PROG (MAGMA) [11*5^n+1: n in [0..30]]; CROSSREFS Sequence in context: A009827 A068418 A068414 * A081756 A307741 A027147 Adjacent sequences:  A199313 A199314 A199315 * A199317 A199318 A199319 KEYWORD nonn,easy AUTHOR Vincenzo Librandi, Nov 05 2011 STATUS approved

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Last modified December 1 20:25 EST 2021. Contains 349435 sequences. (Running on oeis4.)