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

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

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

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

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