A242892 Beginning with a centrally symmetric 'Star' configuration of 9 rhombi with rotational symmetry, number of tiles that can be added to the free edges of the tiling.

9, 9, 18, 27, 27, 18

Offset

1,1

Links

Table of n, a(n) for n=1..6.

S. Weber, Fourier transform on quasiperiodic point sets (select '9-fold' with 'shift (n-1)/(2n)')

Crossrefs

Cf. A242128, A242129, A242888, A242889, A242890, A242891, A242893, A242894, A242895.

Sequence in context: A065999 A168419 A309463 * A112440 A022092 A245430

Adjacent sequences: A242889 A242890 A242891 * A242893 A242894 A242895

Keyword

nonn,more

Author

Felix Fröhlich, May 25 2014

Status

approved