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

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

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

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

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