# A014831 (b-file synthesized from sequence entry)
1 1
2 10
3 83
4 668
5 5349
6 42798
7 342391
8 2739136
9 21913097
10 175304786
11 1402438299
12 11219506404
13 89756051245
14 718048409974
15 5744387279807
16 45955098238472
17 367640785907793
18 2941126287262362
19 23529010298098915
20 188232082384791340
21 1505856659078330741