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

 

Logo

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 59th year, we have over 358,000 sequences, and we’ve crossed 10,300 citations (which often say “discovered thanks to the OEIS”).

Other ways to Give
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A203706 v(n+1)/v(n), where v=A203705. 2
7, 361, 56277, 84553833, 49208814333, 169562387740473, 208430698274481501, 1281126039821691353577, 35292441292705740030129333, 104535840312291670484725915119, 3928951393854870421503654084782523 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

See A093883 for a discussion and guide to related sequences.

LINKS

Table of n, a(n) for n=1..11.

MATHEMATICA

f[j_] := Prime[j]; z = 11;

u := Product[f[j]^2 - f[j] f[k] + f[k]^2, {j, 1, k - 1}]

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

Table[v[n], {n, 1, z}] (* A203705 *)

Table[v[n + 1]/v[n], {n, 1, z}] (* A203706 *)

CROSSREFS

Sequence in context: A067556 A082098 A057634 * A145181 A221353 A222870

Adjacent sequences: A203703 A203704 A203705 * A203707 A203708 A203709

KEYWORD

nonn

AUTHOR

Clark Kimberling, Jan 05 2012

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.

License Agreements, Terms of Use, Privacy Policy. .

Last modified November 28 22:51 EST 2022. Contains 358421 sequences. (Running on oeis4.)