# A028147 (b-file synthesized from sequence entry)
0 1
1 30
2 575
3 9000
4 125661
5 1633410
6 20245675
7 242827500
8 2845466921
9 32788860390
10 373244969175
11 4210842870000
12 47192731209781
13 526333705304970
14 5848962216923075
15 64823992266568500
16 717024715753610241