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