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A267467 as a simple table

na(n)
15
225
3115
4515
52285
610119
744901
8200119
9897301
104052183
1118444197
1284651063
13391805877
141828676887
158604122053
1640793238647
17194778656213
18936040595031
194524410973669
2021981448319671
21107275320299509
22525571712299415

[5,25,115,515,2285,10119,44901,200119,897301,
 4052183,18444197,84651063,391805877,1828676887,
 8604122053,40793238647,194778656213,936040595031,
 4524410973669,21981448319671,107275320299509,
 525571712299415]