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