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