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

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

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

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

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