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A002461 as a simple table

na(n)
21
33
420
535
6126
7231
83432
96435
1024310
1146189
12352716
13676039
142600150
155014575
16155117520
17300540195
181166803110
192268783825
2017672631900
2134461632205
22134564468610
23263012370465
244116715363800
258061900920775
2631602651609438
2761989816618513
28486734856412028

[1,3,20,35,126,231,3432,6435,24310,46189,352716,
 676039,2600150,5014575,155117520,300540195,
 1166803110,2268783825,17672631900,34461632205,
 134564468610,263012370465,4116715363800,
 8061900920775,31602651609438,61989816618513,
 486734856412028]