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

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

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

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

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