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

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

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

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

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