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

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

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

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

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