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

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

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

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

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