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

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

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

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

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