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