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

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

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

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

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