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

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A140061 Triangle of quotients. 3

%I #7 Apr 12 2014 19:27:20

%S 1,3,2,5,4,3,9,8,6,4,11,10,9,8,5,17,16,15,12,10,6,21,20,18,16,15,12,7,

%T 29,28,27,24,20,18,14,8,33,32,30,28,25,24,21,16,9,41,40,39,36,35,30,

%U 28,24,18,10,47,46,45,44,40,36,35,32,27,20,11,57,56,54,52,50,48,42,40,36

%N Triangle of quotients.

%C Column 1 is essentially A007952. - _Clark Kimberling_, Aug 27 2008

%F The triangular subarray of A140060 consisting of rows whose terms are distinct. If n is the first term in a row (i.e., if n is a term of A082447), then Q(n,1)=n, Q(n,k)=k*Floor(Q(n,k-1)/k).

%e First 6 rows:

%e 1

%e 3 2

%e 5 4 3

%e 9 8 6 4

%e 11 10 9 8 5

%e 17 16 15 12 10 6

%t Flatten@Table[Reverse@FoldList[#2*Floor[#1/#2+1]&,i,Reverse@Range[i-1]],{i,10}] (* _Birkas Gyorgy_, Feb 26 2011 *)

%Y Cf. A140060.

%Y Cf. A007952.

%K nonn,tabf

%O 1,2

%A _Clark Kimberling_, May 03 2008

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.

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 23 06:45 EDT 2024. Contains 371906 sequences. (Running on oeis4.)