A142870 - OEIS

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A142870

Number of permutation symbols of type *a(n) for hyperbolic archimedean tessellations of rank n.

%I #7 Oct 01 2016 17:11:33

%S 1,1,1,3,4,11,16,45,64,193,276,873,1252,4167,6028,20793,30364,108699

%N Number of permutation symbols of type *a(n) for hyperbolic archimedean tessellations of rank n.

%C See Conway et al. for precise definition.

%D J. H. Conway et al., The Symmetries of Things, Peters, 2008, p. 261.

%Y Bisections: A142872, A142876.

%K nonn,more

%O 1,4

%A _N. J. A. Sloane_, Oct 03 2008