(0 19 16)(1 11 9 5 3)(2 21 20 17 8)(4 7 6)(10 14 12)(13 18 15)
ALLOWS (11/8)-SEQUENCE
1: (0 4 7)
(0 6 4 19 16)(1 11 9 5 3)(2 21 20 17 8)(7)(10 14 12)(13 18 15)
2: (3 9 5)
(0 6 4 19 16)(1 11 9)(2 21 20 17 8)(3)(5)(7)(10 14 12)(13 18 15)
3: (2 21 8)
(0 6 4 19 16)(1 11 9)(2)(3)(5)(7)(8 20 17)(10 14 12)(13 18 15)(21)
4: (4 19 6)
(0 6 16)(1 11 9)(2)(3)(4)(5)(7)(8 20 17)(10 14 12)(13 18 15)(19)(21)