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

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

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

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

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