(0 21 4)(1 6 2)(3 10 9)(5 12 8)(7 17 15 13 11)(14 19 16)(18 22 20)
ALLOWS (11/8)-SEQUENCE
1: (3 7 17)

(0 21 4)(1 6 2)(3 15 13 11 7 10 9)(5 12 8)(14 19 16)(17)(18 22 20)
2: (7 10 15)

(0 21 4)(1 6 2)(3 15 9)(5 12 8)(7 13 11)(10)(14 19 16)(17)(18 22 20)
3: (5 12 8)

(0 21 4)(1 6 2)(3 15 9)(5)(7 13 11)(8)(10)(12)(14 19 16)(17)(18 22 20)
4: (14 19 16)

(0 21 4)(1 6 2)(3 15 9)(5)(7 13 11)(8)(10)(12)(14)(16)(17)(18 22 20)(19)