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

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

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

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

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