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