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

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

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

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

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