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

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

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

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

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