DISCLIKE LATTICE REPTILES INDUCED BY EXACT POLYOMINOES
Hyun Jong Song, Byung Sik Kang · Fractals · 1999
In this paper, we show how to derive disclike reptiles from exact polyominoes. For classification of disclike reptiles, we introduce a concept of the state graph. Finally, we exhibit 29 four-piece disclike reptiles derived from tetrominoes.