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

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

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

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

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