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

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

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

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

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