This site is supported by donations to The OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A133463 Partial sums of the sequence that starts with 2 and is followed by A111575. 1
 2, 3, 4, 5, 6, 9, 12, 15, 18, 27, 36, 45, 54, 81, 108, 135, 162, 243, 324, 405, 486, 729, 972, 1215, 1458, 2187, 2916, 3645, 4374, 6561, 8748, 10935, 13122, 19683, 26244, 32805, 39366, 59049, 78732, 98415, 118098, 177147, 236196, 295245, 354294 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 LINKS FORMULA a(4n) = 2*A111575(4n). a(4n+1)= 3*A111575(4n+1). a(4n+2)= 4*A111575(4n+2). a(4n+3)= 5*A111575(4n+3). - R. J. Mathar, Jan 12 2008 MAPLE A111575 := proc(n) 3^(floor(n/4)) ; end: A133463 := proc(n) 2+add( A111575(i), i=0..n-1) ; end: seq(A133463(n), n=0..80) ; # R. J. Mathar, Jan 12 2008 CROSSREFS Sequence in context: A036027 A036032 A008813 * A187550 A057492 A178715 Adjacent sequences:  A133460 A133461 A133462 * A133464 A133465 A133466 KEYWORD nonn AUTHOR Paul Curtz, Nov 28 2007 EXTENSIONS Edited and extended by R. J. Mathar, Jan 12 2008 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
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified March 21 11:49 EDT 2019. Contains 321368 sequences. (Running on oeis4.)