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

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

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

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

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