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