# A016237 (b-file synthesized from sequence entry)
0 1
1 16
2 191
3 2066
4 21441
5 218316
6 2202691
7 22124566
8 221733941
9 2219780816
10 22210015191
11 222161187066
12 2221917046441
13 22220696343316
14 222214592827691
15 2222184075249566
16 22222031487358941
17 222221268547905816
18 2222217453850640191
19 22222198380364312066