#17594: iOA of type OA(k,n)-OA(k,u)-2.OA(k,1)
-------------------------------------+-------------------------------------
       Reporter:  ncohen             |        Owner:
           Type:  enhancement        |       Status:  needs_review
       Priority:  major              |    Milestone:  sage-6.5
      Component:  combinatorial      |   Resolution:
  designs                            |    Merged in:
       Keywords:                     |    Reviewers:
        Authors:  Nathann Cohen      |  Work issues:
Report Upstream:  N/A                |       Commit:
         Branch:  public/17594       |  311cd172c2cd1bdc90449f1f01931530b3f523b9
   Dependencies:  #17149             |     Stopgaps:
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Changes (by vdelecroix):

 * status:  needs_work => needs_review


Comment:

 Hello Nathann,

 It seems to work but we do have very few examples of `OA(k,n) - OA(k,u)`,
 right?
 {{{
 sage: for n in range(2,1000):
 ....:     if designs.incomplete_orthogonal_array(4,n,[2],existence=True):
 ....:         print n
 9
 }}}

 Vincent

--
Ticket URL: <http://trac.sagemath.org/ticket/17594#comment:8>
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