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

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

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

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

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