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