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