# A331528 (b-file synthesized from sequence entry)
0 0
1 1
2 21
3 156
4 700
5 2325
6 6321
7 14896
8 31536
9 61425
10 111925
11 193116
12 318396
13 505141
14 775425
15 1156800
16 1683136
17 2395521
18 3343221
19 4584700
20 6188700
21 8235381
22 10817521
23 14041776
24 18030000
25 22920625
26 28870101
27 36054396
28 44670556
29 54938325
30 67101825
31 81431296
32 98224896