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

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

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

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

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