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

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

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

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

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