[seqfan] Re: definition of A002848

Richard Guy rkg at cpsc.ucalgary.ca
Thu Feb 11 22:45:34 CET 2010


Sorry to continue to be bewildered, but the definition
of A002848 contains the phrase ``as in A002848''.
Can we have an example?  Can you partition {1,...,n}
into triples if  n  is not a multiple of  3 ?

>From the references, I shd know all the answers,
but I guess Altzh ... ahltz ...  ...



On Thu, 11 Feb 2010, Alois Heinz wrote:

> rhhardin at att.net schrieb:
>> added a(12)
>> 1 0 0 8 21 0 0 3040 20505 0 0 10567748
> I can confirm this.  And a(13) = 103372655
>
> (Computed with the dancing links algorithm suggested by D. E. Knuth)
> http://en.wikipedia.org/wiki/Dancing_Links
>
> %S A108235 1,0,0,8,21,0,0,3040,20505,0,0,10567748,103372655,0,0
>
> Alois
>
>
>
>
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