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

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

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

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

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