Number of achiral polyominoes composed of n tetrahedral cells of the hyperbolic regular tiling with Schläfli symbol {3,3,oo}.

A371351

Number of achiral polyominoes composed of n tetrahedral cells of the hyperbolic regular tiling with Schläfli symbol {3,3,oo}.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =2a(4) =4a(5) =8a(6) =15a(7) =37a(8) =73a(9) =182a(10) =364a(11) =952a(12) =1944a(13) =5169a(14) =10659a(15) =28842a(16) =60115a(17) =164450a(18) =345345a(19) =953814a(20) =2016144a(21) =5609760a(22) =11920740a(23) =33378072a(24) =71250060a(25) =200553733a(26) =429757960a(27) =1215177680a(28) =2612635888a(29) =7416503776

External references