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