%I M1246 #17 Sep 26 2017 02:51:12
%S 1,2,4,11,28,77,209,573,1576,4340,11964,33004,91080,251407,694065,
%T 1916306,5291223,14610468,40344380,111406090,307637516,849517917,
%U 2345890032,6478044971,17888793238,49399054113,136413247359,376699178348,1040238528205
%N Number of irreducible positions of size n in Montreal solitaire.
%D N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
%H C. Cannings, J. Haigh, <a href="https://doi.org/10.1016/0097-3165(92)90037-U">Montreal solitaire</a>, J. Combin. Theory Ser. A 60 (1992), no. 1, 50-66.
%Y Cf. A007046, A007049, A007050, A007075, A007076.
%K nonn
%O 1,2
%A _N. J. A. Sloane_, _Mira Bernstein_
%E More terms from _Sean A. Irvine_, Sep 25 2017
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