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