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