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

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

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

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

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