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

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

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

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

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