# A026296 (b-file synthesized from sequence entry)
1 1
2 6
3 38
4 229
5 1349
6 7894
7 46122
8 269607
9 1578035
10 9251060
11 54322938
12 319502765
13 1882040458
14 11102029850
15 65576732025
16 387817554915
17 2296120266390
18 13608607411660
19 80732861599612
20 479372928880782