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

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

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

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

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