# A037594 (b-file synthesized from sequence entry)
1 1
2 8
3 67
4 537
5 4296
6 34371
7 274969
8 2199752
9 17598019
10 140784153
11 1126273224
12 9010185795
13 72081486361
14 576651890888
15 4613215127107
16 36905721016857
17 295245768134856
18 2361966145078851