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

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

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

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

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