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A001456 as a simple table

na(n)
51
625
7421
86105
983029
101100902
1114516426
12192422979
132579725656
1435098717902
15485534447114
166835409506841
1797966603326993
181429401763567226
1921226755241285022
20320692032888290224
214926576077469905280
2276913478420068425515
231219520974164038038455

[1,25,421,6105,83029,1100902,14516426,192422979,
 2579725656,35098717902,485534447114,6835409506841,
 97966603326993,1429401763567226,21226755241285022,
 320692032888290224,4926576077469905280,
 76913478420068425515,1219520974164038038455]