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

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

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

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

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