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

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

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

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

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