1,1

Thomas J. O'Reilly, Classifying and Counting Hexaflexagrams, J. Rec. Math., 8 (1976), 182-187.

Adjacent sequences: A007496 A007497 A007498 this_sequence A007500 A007501 A007502

Sequence in context: A060529 A048073 A002447 this_sequence A117555 A059810 A037397

nonn

njas, Robert G. Wilson v (rgwv(AT)rgwv.com)