1,2
Table of n, a(n) for n=1..12.
A. V. Maleev, An Algorithm and Program of Exhaustive Search for Possible Tiling of a Plane with Polyominoes, Crystallography Reports [translation of Krystallografiya], 46 (No. 1, 2001), 154-156.
Sequence in context: A306076 A069124 A218028 * A066089 A203235 A256214
Adjacent sequences: A067766 A067767 A067768 * A067770 A067771 A067772
nonn
N. J. A. Sloane, Feb 09 2002
approved