Number of permutation symbols of type r(n) for hyperbolic archimedean tessellations of rank n.
A142867
Number of permutation symbols of type r(n) for hyperbolic archimedean tessellations of rank n.
Terms
- a(0) =1a(1) =6a(2) =2a(3) =14a(4) =6a(5) =32a(6) =20a(7) =100a(8) =76a(9) =324a(10) =312a(11) =1285a(12) =1384a(13) =5027a(14) =6512a(15) =24883a(16) =32400a(17) =128354
External references
- oeis: A142867