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

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

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

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

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