The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A094616 Row sums of A094615. 2
 1, 8, 35, 126, 417, 1324, 4111, 12602, 38333, 116040, 350187, 1054678, 3172249, 9533156, 28632263, 85962354, 258018165, 774316672, 2323474339, 6971471630, 20916512081, 62753730588, 188269580415, 564825518506, 1694510109997 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 LINKS FORMULA a(n) = 2(a(n-1)+3^n)+n-1, a(0)=1. a(n) = 2*3^(n+1)-2^(n+2)-n-1. - Benoit Cloitre, May 23 2004 PROG (PARI) a(n)=2*3^(n+1)-2^(n+2)-n-1 CROSSREFS Cf. A094615. Sequence in context: A248882 A292479 A301881 * A318020 A340522 A114569 Adjacent sequences: A094613 A094614 A094615 * A094617 A094618 A094619 KEYWORD nonn AUTHOR Clark Kimberling, May 14 2004 STATUS approved

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

Last modified March 24 07:56 EDT 2023. Contains 361454 sequences. (Running on oeis4.)