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

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

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

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

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