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

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

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

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

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