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

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

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

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

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