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

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

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

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

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