# A069975 (b-file synthesized from sequence entry)
1 15
2 126
3 429
4 1020
5 1995
6 3450
7 5481
8 8184
9 11655
10 15990
11 21285
12 27636
13 35139
14 43890
15 53985
16 65520
17 78591
18 93294
19 109725
20 127980
21 148155
22 170346
23 194649
24 221160
25 249975
26 281190
27 314901
28 351204
29 390195
30 431970
31 476625
32 524256
33 574959