Anyone familiar with an H&L sequence diagram notation quoted in my post?

[GrandpaBig]

Newbie to Forum - trying to quote an older post about a notation for describing the tying of knots via an H&L sequence diagram tool. Anyone familiar with this notation? Blessings,

@nautile post:14

Bonjour !

Thank you Pabpres and Jimbo for providing me with a natural testing ground : please consult album for a graphical summary of your posts using the H& L drawing sequence tool :

http://fr.pg.photos.yahoo.com/ph/innominedarnold/album?.dir=/a37b&.src=ph

and post in “tentative defining knot” titled "ptitroy-1021-1038
Put it there as I think best to put all this sort of information in the same topic. Already 3 topics ate intertwining
the above one plus “cans of worms” plus "abok compacted & extended

Ptitroy : H1 L2 H3 H4 L5 L6 L7 H8 H9 L10
#1038 : H1 L2 H3 H4 L5 L6 L7 H8 H9 L10
#1021 : L1 H2 L3 L4 H5 L6 L7 H8 H9 L10

#44 : H1 L2 H3 H4 L5
#45 : L1 L2 H3 H4 L5 L6 L7
#1053 : H1 L2 H3 H4 L5 H6 L7 L8 H9 H10 L11 L12

Regards.

Charles /nautile