[seqfan] Re: about A011971
israel at math.ubc.ca
israel at math.ubc.ca
Thu Apr 30 00:37:52 CEST 2015
This is correct. P being a lower triangular matrix with 1's on the
diagonal, exp(P)/exp(1) will have 1's on its diagonal, which A011971 does
not. It looks like the first column of A011971 is the same as the first
column of exp(P)/exp(1). I don't know what relationship, if any, exp(P) has
to the rest of A011971.
Cheers,
Robert
On Apr 29 2015, rcuculiere at free.fr wrote:
> Good evening. In the notice about A011971, in the second line of
> comments, it is written that if P is the lower-triangular Pascal-matrix,
> then the triangular matrix A011971 (Bell-Aitken-Peirce triangle) is
> exp(P)/exp(1). I think it is not. Greetings.
>
>Roger CUCULIÈRE
>35, rue d'Alsace
>92110 CLICHY LA GARENNE
>FRANCE
> <rcuculiere at free.fr>
>
>
>
>
>
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