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

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

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

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

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