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

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

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

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

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