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

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

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

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

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