A142870 Number of permutation symbols of type *a(n) for hyperbolic archimedean tessellations of rank n.

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

Offset

1,4

Comments

See Conway et al. for precise definition.

References

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

Links

Table of n, a(n) for n=1..18.

Crossrefs

Bisections: A142872, A142876.

Sequence in context: A027306 A239024 A026676 * A324552 A143680 A058569

Adjacent sequences: A142867 A142868 A142869 * A142871 A142872 A142873

Keyword

nonn,more

Author

N. J. A. Sloane, Oct 03 2008

Status

approved