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

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

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

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

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