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

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

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

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

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