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

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

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

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

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