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

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

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

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

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