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

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

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

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

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