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A151987 Number of legal starting configurations in the glass worms (or vers de verres) game with n glasses. 4

%I

%S 1,1,3,13,64,404,2135,21077,111459,1261637,10767866,111804384,

%T 659105457,18705101130

%N Number of legal starting configurations in the glass worms (or vers de verres) game with n glasses.

%C Suggested by a question from Eric Angelini.

%C See the Sequence Fans Mailing List link and also the Angelini link for further information.

%C It is conjectured that a(n)~(n+1)^(n+1)/exp(n). [From _Dennis Hou_, May 05 2010]

%H Eric Angelini, <a href="http://www.cetteadressecomportecinquantesignes.com/GlassWorms.htm">Vers de verres (Glass worms)</a>

%H E. Angelini, <a href="/A151986/a151986.pdf">Vers de verres (Glass worms)</a> [Cached copy, with permission]

%H Sequence Fans Mailing List, <a href="/A151986/a151986.txt">Discussion about Glass Worms</a>

%Y Cf. A151986.

%K nonn,more

%O 0,3

%A _Jacques Tramu_, Mar 09 2009

%E Offset corrected by Joseph Myers, Sep 07 2009

%E a(9) to a(13) from _Joseph Myers_, Sep 08 2009

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Last modified June 2 08:00 EDT 2020. Contains 334767 sequences. (Running on oeis4.)