# A068133 (b-file synthesized from sequence entry)
0 0
1 1
2 3
3 6
4 28
5 78
6 1596
7 5995
8 67896
9 887778
10 15997996
11 398988876
12 9876799878
13 299789989975
14 35998897988976
15 589598998999878
16 78999997699698778
17 7987899888859999878
18 1998997979958978979995
19 539799799988999999688778