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A203073 G.f.: (4-4*x-20*x^2)/(1-19*x+2*x^2+78*x^3). 0

%I

%S 4,72,1340,25004,466780,8714292,162687676,3037228420,56702249852,

%T 1058578651620,19762686064316,368951102430308,6887976439220860,

%U 128592160627319076,2400696913051056700,44818794864456212068,836725520069635027964,15620892932376170684580,291627648675580388409788,5444418948405843506235620

%N G.f.: (4-4*x-20*x^2)/(1-19*x+2*x^2+78*x^3).

%D Epstein, David B. A.; Iano-Fletcher, Anthony R.; and Zwick, Uri; Growth functions and automatic groups. Experiment. Math. 5 (1996), no. 4, 297-315.

%K nonn

%O 0,1

%A _N. J. A. Sloane_, Dec 28 2011

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Last modified May 23 13:13 EDT 2019. Contains 323514 sequences. (Running on oeis4.)