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