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