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