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