This site is supported by donations to The OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A230952 Boustrophedon transform of Hamming weight (A000120). 4
 0, 1, 3, 8, 23, 72, 280, 1242, 6331, 36236, 230726, 1615584, 12342422, 102145644, 910393530, 8693609421, 88552405435, 958361506524, 10982014291650, 132835979792636, 1691320230842116, 22611285878526978, 316685416851528722, 4636988553066906265 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 LINKS Reinhard Zumkeller, Table of n, a(n) for n = 0..400 Peter Luschny, An old operation on sequences: the Seidel transform J. Millar, N. J. A. Sloane and N. E. Young, A new operation on sequences: the Boustrophedon transform, J. Combin. Theory, 17A 44-54 1996 (Abstract, pdf, ps). Wikipedia, Boustrophedon_transform FORMULA a(n) = sum(A109449(n,k)*A000120(k): k=0..n). PROG (Haskell) a230952 n = sum \$ zipWith (*) (a109449_row n) \$ map fromIntegral a000120_list CROSSREFS Cf. A230950, A230951. Sequence in context: A259441 A176605 A080410 * A148777 A124462 A047857 Adjacent sequences:  A230949 A230950 A230951 * A230953 A230954 A230955 KEYWORD nonn AUTHOR Reinhard Zumkeller, Nov 03 2013 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.

Last modified August 15 07:26 EDT 2018. Contains 313756 sequences. (Running on oeis4.)