login
Number of 1-sided strip polypons with n cells.
4

%I #6 Oct 02 2013 16:25:26

%S 1,2,2,4,4,7,8,14,16,26,32,50,60,93,116,180,224,340,432,646,812,1215,

%T 1552,2314,2944,4371,5592,8252,10520,15558,19928,29370,37512,55318,

%U 70800,104042,132900,195685,250336,367662,469536,690584,882664,1295126,1653128,2429594

%N Number of 1-sided strip polypons with n cells.

%H Ed Pegg, Jr., <a href="http://demonstrations.wolfram.com/PolyformExplorer/">Illustrations of polyforms</a>

%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/Polypon.html">Polypon</a>

%Y Cf. A057784, A151531, A151533.

%K nonn,hard

%O 1,2

%A _Ed Pegg Jr_, May 13 2009

%E a(21)-a(46) from _Joseph Myers_, Oct 02 2011