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