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

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

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

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

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