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

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

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

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

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