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