Let's start the week by breaking a record. (Update: Or tying one, anyway...see new revisions.)
Darryl Francis constructed a transdeletion pyramid of equal size to yours which was published in the February 2003 issue of "Word Ways" (page 21).
https://digitalcommons.butler.edu/cgi/viewcontent.cgi?article=4736&context=wordways
This is good to know! I'll update the main post when I get a chance.
Darryl Francis constructed a transdeletion pyramid of equal size to yours which was published in the February 2003 issue of "Word Ways" (page 21).
https://digitalcommons.butler.edu/cgi/viewcontent.cgi?article=4736&context=wordways
This is good to know! I'll update the main post when I get a chance.