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

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

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

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

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