# A025938 (b-file synthesized from sequence entry)
0 1
1 19
2 237
3 2471
4 23429
5 210063
6 1818349
7 15380167
8 128060757
9 1054660607
10 8618507261
11 70035919863
12 566816115685
13 4573706232751
14 36824728021773
15 296008336113959
16 2376529889559413
17 19063018707520095