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