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

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

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

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

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