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A125787 as a simple table

na(n)
01
12
28
352
4433
54276
658017
7855463
813670443
9235745794
105122022952
11115172651558
122700441900575
1366188170219650
141696382503295129
1552131050479431445
161631282413260019671
1752321326819923379190

[1,2,8,52,433,4276,58017,855463,13670443,
 235745794,5122022952,115172651558,2700441900575,
 66188170219650,1696382503295129,52131050479431445,
 1631282413260019671,52321326819923379190]