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

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

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

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

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