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