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A149369 as a simple table

na(n)
01
11
24
312
445
5171
6687
72803
811748
949831
10214434
11931716
124085156
1318040522
1480183435
15358314337
161608920279
177254733913
1832835218026
19149109378700
20679164584418
213101883535311
2214201896280766
2365169414956550
24299665789841870
251380552538613722
266371296684194483
2729451369951867444

[1,1,4,12,45,171,687,2803,11748,49831,214434,
 931716,4085156,18040522,80183435,358314337,
 1608920279,7254733913,32835218026,149109378700,
 679164584418,3101883535311,14201896280766,
 65169414956550,299665789841870,1380552538613722,
 6371296684194483,29451369951867444]