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

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

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

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

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