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

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

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

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

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