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

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

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

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

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