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

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

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

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

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