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