(0 19 2)(1 12 9 7 4)(3 21 17 15 13)(5 8 6)(10 14 11)(16 20 18)
ALLOWS (11/8)-SEQUENCE
1: (0 1 2)
(0)(1 19 2 12 9 7 4)(3 21 17 15 13)(5 8 6)(10 14 11)(16 20 18)
2: (2 12 19)
(0)(1 19 9 7 4)(2)(3 21 17 15 13)(5 8 6)(10 14 11)(12)(16 20 18)
3: (3 21 17)
(0)(1 19 9 7 4)(2)(3 15 13)(5 8 6)(10 14 11)(12)(16 20 18)(17)(21)
4: (16 20 18)
(0)(1 19 9 7 4)(2)(3 15 13)(5 8 6)(10 14 11)(12)(16)(17)(18)(20)(21)