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A006432 as a simple table

na(n)
10
23
360
4650
55352
637681
7239752
81421226
97996160
1043219990
11226309800
121154900708
135769562736
1428312118565
15136830224464
16652656300122
173077631550512
1814367512295274
1966478236840680
20305161336656876
211390869368495728
226298727501142218
2328358908010334960

[0,3,60,650,5352,37681,239752,1421226,7996160,
 43219990,226309800,1154900708,5769562736,
 28312118565,136830224464,652656300122,
 3077631550512,14367512295274,66478236840680,
 305161336656876,1390869368495728,6298727501142218,
 28358908010334960]