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