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

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

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

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

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