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