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