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

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

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

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

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