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A003040 as a simple table

na(n)
11
21
32
43
56
616
735
890
9216
10768
112310
127700
1321450
1469498
15292864
161153152
174873050
1816336320
1964664600
20249420600
211118939184
225462865408
2328542158568
24117487079424
25547591590000
262474843571200
2712760912164000
2857424104738000
29295284192952320

[1,1,2,3,6,16,35,90,216,768,2310,7700,21450,69498,
 292864,1153152,4873050,16336320,64664600,
 249420600,1118939184,5462865408,28542158568,
 117487079424,547591590000,2474843571200,
 12760912164000,57424104738000,295284192952320]