CTAN has a new package: luasseq

[CTAN Announcements]

This should be at your local mirror.

Thanks again,
Jim Hef{}feron
Saint Michael's College

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The following information was provided by our fellow contributor:

Name of contribution: luasseq
Version number: 2.1
Author's name: Tilman Bauer
Location on CTAN: /macros/luatex/latex/
Summary description: drawing spectral sequences in lualatex (improved version of sseq)
License type: lppl

Announcement text: 
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This is an update of my sseq package for drawing spectral sequences for use with 
lualatex. The speed and memory requirements are much higher and lower, respectively. 
There are also a number of new features, consult the documentation for details.
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This package is at 
   http://tug.ctan.org/tex-archive/macros/luatex/latex/luasseq
.  Information is at
   http://tug.ctan.org/pkg/luasseq
(it may take a day for the information to appear).  We are supported 
by the TeX Users Group http://www.tug.org .  For your users group 
see http://www.tug.org/usergroups.html .