(0 21 2)(1 7 3)(4 19 15 11 5)(6 10 8)(9 14 12)(13 18 16)(17 22 20)
ALLOWS (11/8)-SEQUENCE
1: (1 7 13)

(0 21 2)(1 18 16 13 3)(4 19 15 11 5)(6 10 8)(7)(9 14 12)(17 22 20)
2: (5 15 11)

(0 21 2)(1 18 16 13 3)(4 19 15)(5)(6 10 8)(7)(9 14 12)(11)(17 22 20)
3: (9 14 12)

(0 21 2)(1 18 16 13 3)(4 19 15)(5)(6 10 8)(7)(9)(11)(12)(14)(17 22 20)
4: (3 16 13)

(0 21 2)(1 18 16)(3)(4 19 15)(5)(6 10 8)(7)(9)(11)(12)(13)(14)(17 22 20)