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

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

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

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

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