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