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

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

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

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

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