[seqfan] Re: reconstructing A176047 (triangle rel. to Hofstadter-Conway)

Charles Greathouse charles.greathouse at case.edu
Wed Jul 11 15:42:48 CEST 2012


The output I get (removing the Flatten command and its preceding semicolon) is

Part::pspec: Part specification 1+m is neither an integer nor a list
of integers. >>
Part::pspec: Part specification 1-m+n is neither an integer nor a list
of integers. >>
Part::pspec: Part specification 1+n is neither an integer nor a list
of integers. >>
General::stop: Further output of Part::pspec will be suppressed during
this calculation. >>
{{1},{1,1},{1,2,1},{1,1,1,1},{1,2,1,2,1},{1,1,1,1,1,1},{1,1,0,1,0,1,1},{1,2,1,1,1,1,2,1},{1,2,2,2,1,2,2,2,1},{1,1,1,2,1,1,2,1,1,1},{1,1,0,1,1,1,1,1,0,1,1}}

Charles Greathouse
Analyst/Programmer
Case Western Reserve University

On Wed, Jul 11, 2012 at 9:20 AM, Richard Mathar
<mathar at strw.leidenuniv.nl> wrote:
>
> Can some re-run the proposed Mma code in https://oeis.org/A176047 and
> try to verify the terms of the sequence? (The row sums are junk...)
> My best bet at the definition (looking at the code) is
> t(n,m) = A004001(m+1)+A004001(n-m+1)-A004001(n+1),
> but this does not match the terms.
>
> RJM
>
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