(0 7 2)(1 19 13)(3 18 5)(4 8 6)(9 12 10)(11 16 14)(15 20 17)
ALLOWS (11/8)-SEQUENCE
1: (4 15 20)
(0 7 2)(1 19 13)(3 18 5)(4 17 15 8 6)(9 12 10)(11 16 14)(20)
2: (1 19 13)
(0 7 2)(1)(3 18 5)(4 17 15 8 6)(9 12 10)(11 16 14)(13)(19)(20)
3: (0 7 2)
(0)(1)(2)(3 18 5)(4 17 15 8 6)(7)(9 12 10)(11 16 14)(13)(19)(20)
4: (6 15 8)
(0)(1)(2)(3 18 5)(4 17 15)(6)(7)(8)(9 12 10)(11 16 14)(13)(19)(20)