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%I #3 Mar 30 2012 16:50:29
%S 1,1,1,1,1,1,4,5,5,1,16,29,25,5,1,100,213,183,54,9,1,625,1545,1395,
%T 502,99,9,1,4300,11431,11193,4879,1150,153,13,1,29584,84037,89089,
%U 44947,12719,2107,223,13,1,206572,617831,706883,403634,133623,27384,3593,302,17,1,1442401,4529489,5560813,3529500,1337042,324198,52178,5532,397,17,1
%N Triangle read by rows: numbers of isomers of unbranched a-4-catapolydecagons.
%D J. Brunvoll, S. J. Cyvin and B. N. Cyvin, Isomer enumeration of polygonal systems..., J. Molec. Struct. (Theochem), 364 (1996), 1-13.
%e Triangle begins
%e 1
%e 1 1
%e 1 1 1
%e 4 5 5 1
%e 16 29 25 5 1
%e 100 213 183 54 9 1
%e 625 1545 1395 502 99 9 1
%Y Columns give A121142-A121144.
%K nonn,tabl
%O 0,7
%A _N. J. A. Sloane_, Aug 18 2006
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