Dave
Glad you’re carrying on with this as Derek has withdrawn unfortunately. Derek and I had discussed the ABOK index project and he was going to add the overs index and the binary signature (in decimal because of length) to the spreadsheet using the utility you’re developing. The idea is to record Ashley and then add knots not in Ashley so we start to build a complete computer index of knots. Unfortunately I haven’t had any volunteers to help yet so this might take a long time!
Barry