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

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

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

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

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