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