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