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A140832 as a simple table

na(n)
01
12
25
312
430
575
6188
7470
81175
92938
107345
1118362
1245905
13114762
14286905
15717262
161793155
174482888
1811207220
1928018050
2070045125
21175112812
22437782030
231094455075
242736137688
256840344220
2617100860550
2742752151375
28106880378438

[1,2,5,12,30,75,188,470,1175,2938,7345,18362,
 45905,114762,286905,717262,1793155,4482888,
 11207220,28018050,70045125,175112812,437782030,
 1094455075,2736137688,6840344220,17100860550,
 42752151375,106880378438]