This site is supported by donations to The OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A182779 a(n) = A049019(n) * A118851(n). 0

%I

%S 1,2,2,3,12,6,4,24,24,72,24,5,40,120,180,360,480,120,6,60,240,180,360,

%T 2160,720,1440,4320,3600,720,7,84,420,840,630,5040,3780,7560,3360,

%U 30240,20160,12600,50400,30240,5040

%N a(n) = A049019(n) * A118851(n).

%C The sequences have shape A000041 and their respective row sums are A000670, A006906 and A006153.

%F a(n)=A049019(n) * A118851(n)

%e For n=3 the values are (3,12,6)=(1,6,6)*(3,2,1)

%Y Cf. A006153 (related to function composition), A133314 (signed version of A049019).

%K nonn,tabf

%O 1,2

%A _Alford Arnold_, Dec 01 2010

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 September 20 02:20 EDT 2019. Contains 327207 sequences. (Running on oeis4.)