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

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

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

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

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