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