# A071990 (b-file synthesized from sequence entry)
5 1
6 12
7 191
8 4084
9 135249
10 6083702
11 382629607
12 28634912196
13 3000711370793
14 332363027120752
15 46774578929554863
16 7143041842570860878
17 1304982717560745380233
18 254050342563254798982984