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

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

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

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

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