This site is supported by donations to The OEIS Foundation.

 Annual appeal: Please make a donation to keep the OEIS running! Over 6000 articles have referenced us, often saying "we discovered this result with the help of the OEIS". Other ways to donate

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A005052 10*3^n. 4
 10, 30, 90, 270, 810, 2430, 7290, 21870, 65610, 196830, 590490, 1771470, 5314410, 15943230, 47829690, 143489070, 430467210, 1291401630, 3874204890, 11622614670, 34867844010, 104603532030, 313810596090, 941431788270, 2824295364810, 8472886094430 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 LINKS Vincenzo Librandi, Table of n, a(n) for n = 0..300 Tanya Khovanova, Recursive Sequences Index entries for linear recurrences with constant coefficients, signature (3). MATHEMATICA 10*3^Range[0, 60] (* Vladimir Joseph Stephan Orlovsky, Jun 09 2011 *) PROG (MAGMA) [10*3^n: n in [0..30]]; // Vincenzo Librandi, Jun 10 2011 (PARI) a(n)=10*3^n \\ Charles R Greathouse IV, Oct 07 2015 CROSSREFS Except for initial terms, same as A062107. Sequence in context: A034127 A229466 A269261 * A057344 A115134 A245428 Adjacent sequences:  A005049 A005050 A005051 * A005053 A005054 A005055 KEYWORD nonn,easy AUTHOR STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.