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