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A010977 as a simple table

na(n)
241
2525
26325
272925
2820475
29118755
30593775
312629575
3210518300
3338567100
34131128140
35417225900
361251677700
373562467300
389669554100
3925140840660
4062852101650
41151584480450
42353697121050
43800472431850
441761039350070
453773655750150
467890371113950
4716123801841550

[1,25,325,2925,20475,118755,593775,2629575,
 10518300,38567100,131128140,417225900,1251677700,
 3562467300,9669554100,25140840660,62852101650,
 151584480450,353697121050,800472431850,
 1761039350070,3773655750150,7890371113950,
 16123801841550]