# A074618 (b-file synthesized from sequence entry)
0 2
1 14
2 106
3 854
4 7186
5 62174
6 547066
7 4861094
8 43437346
9 389373614
10 3496550026
11 31429887734
12 282673677106
13 2543086531454
14 22882895970586
15 205921649672774
16 1853172776742466
17 16677944639119694
18 150098449994264746