(0 20 1)(2 21 4)(3 7 5)(6 11 8 13 9)(10 15 12)(14 19 16)(17 22 18)
ALLOWS (11/8)-SEQUENCE
1: (2 6 11)

(0 20 1)(2 8 13 9 6 21 4)(3 7 5)(10 15 12)(11)(14 19 16)(17 22 18)
2: (4 13 21)

(0 20 1)(2 8 13)(3 7 5)(4)(6 21 9)(10 15 12)(11)(14 19 16)(17 22 18)
3: (10 15 12)

(0 20 1)(2 8 13)(3 7 5)(4)(6 21 9)(10)(11)(12)(14 19 16)(15)(17 22 18)
4: (3 7 5)

(0 20 1)(2 8 13)(3)(4)(5)(6 21 9)(7)(10)(11)(12)(14 19 16)(15)(17 22 18)