# Greetings from The On-Line Encyclopedia of Integer Sequences! http://oeis.org/ Search: id:a189800 Showing 1-1 of 1 %I A189800 #50 Apr 11 2024 15:19:45 %S A189800 0,1,6,44,312,2224,15840,112832,803712,5724928,40779264,290475008, %T A189800 2069084160,14738305024,104982503424,747801460736,5326668791808, %U A189800 37942424436736,270267896954880,1925146777223168,13713023838978048,97679317251653632,695780094221746176 %N A189800 a(n) = 6*a(n-1) + 8*a(n-2), with a(0)=0, a(1)=1. %H A189800 Vincenzo Librandi, Table of n, a(n) for n = 0..1000 %H A189800 Index entries for linear recurrences with constant coefficients, signature (6,8). %F A189800 G.f.: x/(1 - 2*x*(3+4*x)). - _Harvey P. Dale_, Jul 26 2011 %t A189800 LinearRecurrence[{6, 8}, {0, 1}, 50] %t A189800 CoefficientList[Series[-(x/(-1+6 x+8 x^2)),{x,0,50}],x] (* _Harvey P. Dale_, Jul 26 2011 *) %o A189800 (Magma) I:=[0,1]; [n le 2 select I[n] else 6*Self(n-1)+8*Self(n-2): n in [1..30]]; // _Vincenzo Librandi_, Nov 14 2011 %o A189800 (PARI) a(n)=([0,1; 8,6]^n*[0;1])[1,1] \\ _Charles R Greathouse IV_, Oct 03 2016 %Y A189800 Sequences of the form a(n) = c*a(n-1) + d*a(n-2), with a(0)=0, a(1)=1: %Y A189800 c/d...1.......2.......3.......4.......5.......6.......7.......8.......9......10 %Y A189800 1..A000045,A001045,A006130,A006131,A015440,A015441,A015442,A015443,A015445,A015446 %Y A189800 2..A000129,A002605,A015518,A063727,A002532,A083099,A015519,A003683,A002534,A083102 %Y A189800 3..A006190,A007482,A030195,A015521,A015523,A083858,A015524,A015525,A099012,A015528 %Y A189800 4..A001076,A090017,A015530,A057087,A015531,A085939,A015532,A180222,A015533,A180226 %Y A189800 5..A052918,A015535,A015536,A015537,A057088,A015540,A015541,A015544,A015545,A180250 %Y A189800 6..A005668,A135030,A090018,A135032,A015551,A057089,A015552,A189800,A189801,A190005 %Y A189800 7..A054413,A015555,A015559,A015561,A015562,A015564,A057090,A015565,A015566,A015568 %Y A189800 8..A041025,A190331,A015574,A190510,A015575,A190560,A015576,A057091,A015577,A190953 %Y A189800 9..A099371,A015579,A181353,A015580,A015581,A153191,A015583,A015584,A057092,A015585 %Y A189800 10.A041041,A191014,A015588,A190954,A190955,A190956,A015589,A190957,A015591,A057093 %K A189800 nonn,easy %O A189800 0,3 %A A189800 _Vladimir Joseph Stephan Orlovsky_, May 24 2011 # Content is available under The OEIS End-User License Agreement: http://oeis.org/LICENSE