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