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

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

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

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

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