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