Design #71 (page 15 in the Handbook):
Parameters: (10,30,12,4,4)
---------------------
Previous lower bound: >= 1,759,613.
New result: Nd = 13,769,944.
Number of distinct designs, D = 49,922,888,066,100

These are the numbers of designs by group size:
|G|     Frequency
===     =========
1440    1
720     1
192     1
96      2
64      2
48      3
36      1
32      12
24      10
20      1
18      4
16      16
12      29
10      9
9       6
8       104
6       113
5       13
4       662
3       1041
2       22113
1       13745800
        --------
total   13769944