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A071739 as a simple table

na(n)
01
12
25
315
448
5159
6539
71859
86500
922984
1082042
11295222
121069776
133900225
1414296455
1552656315
16194777340
17723281460
182695246950
1910075695330
2037776123840
21142010723790
22535172997294
232021412800430
247651226309768

[1,2,5,15,48,159,539,1859,6500,22984,82042,295222,
 1069776,3900225,14296455,52656315,194777340,
 723281460,2695246950,10075695330,37776123840,
 142010723790,535172997294,2021412800430,
 7651226309768]