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A151987
Number of legal starting configurations in the glass worms (or vers de verres) game with n glasses.
4
1, 1, 3, 13, 64, 404, 2135, 21077, 111459, 1261637, 10767866, 111804384, 659105457, 18705101130
OFFSET
0,3
COMMENTS
Suggested by a question from Eric Angelini.
See the Sequence Fans Mailing List link and also the Angelini link for further information.
It is conjectured that a(n)~(n+1)^(n+1)/exp(n). [From Dennis Hou, May 05 2010]
LINKS
E. Angelini, Vers de verres (Glass worms) [Cached copy, with permission]
Sequence Fans Mailing List, Discussion about Glass Worms
CROSSREFS
Cf. A151986.
Sequence in context: A200719 A065065 A020086 * A369796 A356485 A126149
KEYWORD
nonn,more
AUTHOR
Jacques Tramu, Mar 09 2009
EXTENSIONS
Offset corrected by Joseph Myers, Sep 07 2009
a(9) to a(13) from Joseph Myers, Sep 08 2009
STATUS
approved