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

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

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

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

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