# A025007 (b-file synthesized from sequence entry)
0 1
1 31
2 635
3 10835
4 166851
5 2407971
6 33252835
7 445002595
8 5818890851
9 74768679011
10 947871169635
11 11890741318755
12 147930305201251
13 1828206048535651
14 22473922782504035
15 275081786101769315