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