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