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

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

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

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

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