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

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

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

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

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