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

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

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

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

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