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