Rich said: Wish: When several related sequences are in the database, designate one of them as Main, and include a short article about all of them and the relationships. Then each related sequence can point to the Main one. Me: I totally agree, and would welcome such articles! As a watered-down version of this idea, I often build an entry in the Index to the OEIS (there's a link at the top page) that collects all related sequences. Example: Barnes-Wall lattices, <a NAME="BW">sequences related to (start):</a> Barnes-Wall lattices, groups of: A014115*, A014116* Barnes-Wall lattices, in 16-dim., theta series of: A008409* Barnes-Wall lattices, kissing numbers of: A006088* Barnes-Wall lattices, odd: A014711* Barnes-Wall lattices, see also A035596 Barnes-Wall lattices: see also <a href="http://www.research.att.com/~njas/sequences/Sindx_Cl.html#cliff">Clifford groups</a> and then each sequence in the group has a pointer to that Index entry, like this: %H A014115 <a href="http://www.research.att.com/~njas/sequences/Sindx_Ba.html#BW">Index entries for sequences related to Barnes-Wall lattices</a> I would welcome further Index entries like that too. Neil Sloane