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