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A149834 as a simple table

na(n)
01
12
24
310
430
594
6316
71112
83976
914798
1056508
11217444
12856594
133430942
1413813620
1556463442
16233440548
17968955348
184064389254
1917189382700
2072928723582
21311804852012
221341392988174
235785742781494
2425102210579594
25109434792302328
26478132786545494
272098665310659574
289247115836091400

[1,2,4,10,30,94,316,1112,3976,14798,56508,217444,
 856594,3430942,13813620,56463442,233440548,
 968955348,4064389254,17189382700,72928723582,
 311804852012,1341392988174,5785742781494,
 25102210579594,109434792302328,478132786545494,
 2098665310659574,9247115836091400]