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

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

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

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

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