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

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

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

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

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