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