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

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

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

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

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