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