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

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

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

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

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