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

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

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

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

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