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!)
A203682 v(n+1)/v(n), where v=A203681. 2

%I #7 Jan 14 2013 04:02:16

%S 3,156,142272,2194403328,557834881204224,2303742029718154641408,

%T 153403122389516451861994930176,

%U 164074442468721024925743366747249967104,2813282786110268238357922727341801514160674045952

%N v(n+1)/v(n), where v=A203681.

%C See A093883 for a discussion and guide to related sequences.

%t f[j_] := 2^(j - 1); z = 12;

%t u[n_] := Product[f[j]^2 - f[j] f[k] + f[k]^2,

%t {j, 1, k - 1}]

%t v[n_] := Product[u[n], {k, 2, n}]

%t Table[v[n], {n, 1, z}] (* A203681 *)

%t Table[v[n + 1]/v[n], {n, 1, z}] (* A203682 *)

%K nonn

%O 1,1

%A _Clark Kimberling_, Jan 04 2012

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 03:30 EDT 2024. Contains 371906 sequences. (Running on oeis4.)