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