OFFSET
0,8
COMMENTS
The corresponding rational parts are given in A249870.
The square of the radii R2(n) of lattice point circles around any lattice point of the Archimedean tiling (3,4,6,4) are integers in Q(sqrt(3)): R2(n) = A249870(n) + a(n)*sqrt(3), n >= 0. They are sorted in increasing order. For details, especially the coordinates of the lattice points, see the note given in a link under A249870.
EXAMPLE
See A249870.
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Wolfdieter Lang, Dec 06 2014
STATUS
approved