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