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

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

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

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

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