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

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

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

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

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