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