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