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

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

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

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

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