1,1

S. K. Stein and S. Szabo, Algebra and Tiling, MAA Carus Monograph 25, 1994, page 77.

Sequence in context: A039687 A001544 A136720 this_sequence A046519 A128351 A050946

Adjacent sequences: A035027 A035028 A035029 this_sequence A035031 A035032 A035033

nonn

N. J. A. Sloane (njas(AT)research.att.com).