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

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

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

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

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