A242893 Beginning with a centrally symmetric 'Sun' configuration of 9 rhombi with rotational symmetry, number of tiles that can be added to the free edges of the tiling.

9, 9, 9, 9, 18, 27, 27, 36

Offset

1,1

Links

Table of n, a(n) for n=1..8.

S. Weber, Fourier transform on quasiperiodic point sets (select '9-fold' with 'shift 1/n')

Crossrefs

Cf. A242128, A242129, A242888, A242889, A242890, A242891, A242892, A242894, A242895.

Sequence in context: A251559 A068395 A245429 * A275485 A346263 A344337

Adjacent sequences: A242890 A242891 A242892 * A242894 A242895 A242896

Keyword

nonn,more

Author

Felix Fröhlich, May 25 2014

Status

approved