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

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

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

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

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