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

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

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

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

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