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

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

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

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

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