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