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A056042 as a simple table

na(n)
11
22
36
46
530
620
7140
870
9630
107
1177
12924
1312012
143432
1551480
1612870
17218790
1848620
19923780
20184756
213879876
22705432
2316224936
242704156
2567603900
2610400600
27280816200
28178296
295170584
30155117520
314808643120
32601080390
3319835652870

[1,2,6,6,30,20,140,70,630,7,77,924,12012,3432,
 51480,12870,218790,48620,923780,184756,3879876,
 705432,16224936,2704156,67603900,10400600,
 280816200,178296,5170584,155117520,4808643120,
 601080390,19835652870]