[Magictour] Re: magictour project finished

From: <Sterten_at_email.domain.hidden>
Date: jeu. août 07 2003 - 12:02:30 W. Europe Daylight Time
Message-ID: <68.33416cc8.2c637db6@aol.com>

GPJ:
>Has anyone done a count of 4x8 semi-magic tours (in the sense of
>adding to the magic constant in all rows or all files but not both)?
>I find 66 magic in the 8-cell lines and 8 magic in the 4-cell lines
>(not counting reversals), but Murray (1917) claimed 67 of the first type.

I found 62176 knight tours on the 4*8 .
544 were semimagic in the 8-cell lines
64 were semimagic in the 4-cell-lines

unless some of these are symmetric, (I found none) this gives
68 and 8 symmetry-classes .

Guenter



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Received on Thu Dec 04 14:24:18 2001

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