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

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

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

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

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