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