(0 19 17 7 3)(1 20 2)(4 21 14 13 6)(5 10 8)(9 15 11)(12 18 16)
ALLOWS (11/8)-SEQUENCE
1: (0 4 17)

(0 7 3)(1 20 2)(4 19 17 21 14 13 6)(5 10 8)(9 15 11)(12 18 16)
2: (14 17 21)

(0 7 3)(1 20 2)(4 19 17 13 6)(5 10 8)(9 15 11)(12 18 16)(14)(21)
3: (12 18 16)

(0 7 3)(1 20 2)(4 19 17 13 6)(5 10 8)(9 15 11)(12)(14)(16)(18)(21)
4: (4 19 17)

(0 7 3)(1 20 2)(4 13 6)(5 10 8)(9 15 11)(12)(14)(16)(17)(18)(19)(21)