# A016185 (b-file synthesized from sequence entry)
0 0
1 1
2 17
3 217
4 2465
5 26281
6 269297
7 2685817
8 26269505
9 253202761
10 2413042577
11 22791125017
12 213710059745
13 1992110014441
14 18478745943857
15 170706760005817
16 1571545212141185
17 14425381885981321
18 132080236787517137
19 1206736529597136217
20 11004743954450081825