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Re: Bishop moves

  • To: mathgroup at
  • Subject: [mg20805] Re: Bishop moves
  • From: Rob Pratt <rpratt at>
  • Date: Sun, 14 Nov 1999 18:13:54 -0500 (EST)
  • Sender: owner-wri-mathgroup at


which gives the following:

Greetings from the On-Line Encyclopedia of Integer Sequences!
Here is Sequence A038496 (this will take a moment): 

ID Number: A038496
Sequence:  1,1,1,3,9,53,465,9815,288601,19609857
Name:      Self-avoiding paths with diagonal steps from corner to opposite
           corner of n x n grid.
Offset:    1
Author(s): David Wilson (wilson at, based on a suggestion of
           Russo (f-russo1 at

I found this sequence by first using Allan Hayes's Backtrack2 command to
compute the terms up through the 8 x 8 board and then submitting these
terms to the EIS lookup engine.  Wilson has many more sequences along
these lines.

Rob Pratt
Department of Operations Research
The University of North Carolina at Chapel Hill

rpratt at

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