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

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

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

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

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