[seqfan] Re: confused about toothpick sequence A139250!

N. J. A. Sloane njas at research.att.com
Mon Apr 13 23:37:37 CEST 2009

I was thinking the new toothpicks would have to touch the midpoints
of old toothpicks, not their endpoints (otherwise we could add 4 
at the first step)

But even so, I have trouble matching the terms


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