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

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

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

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

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