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

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

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

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

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