Number of hexaflexagons with 3n triangles that can be folded from a straight strip of paper.
A007282
Number of hexaflexagons with 3n triangles that can be folded from a straight strip of paper.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =4a(4) =14a(5) =74a(6) =434a(7) =2876a(8) =19848a(9) =143306a(10) =1062149a(11) =8058223a(12) =62259820a(13) =488630360a(14) =3886211100a(15) =31267852668
External references
- oeis: A007282