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

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

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

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

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