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