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

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

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

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

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