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