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

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

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

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

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