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

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

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

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

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