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

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

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

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

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