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