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