[seqfan] Re: Help with A028247 Number of T-frame polyominoes with n cells
Don Reble
djr at nk.ca
Wed Feb 1 23:07:22 CET 2023
> Don. For a(8) I think you're missing
>
> OOOO
> OOO_
> __O_
Thank you, John. I was mis-discounting symmetrics;
now I confirm the author's data.
--
Don Reble djr at nk.ca
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