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