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A230955 as a simple table

na(n)
01
15
215
340
4114
5371
61422
76334
832238
9184655
101175454
118231308
1262882262
13520416569
144638303786
1544292536061
16451160065069
174882696090609
1855951575728713
19676777708544967
208617001415386120
21115200823068725262
221613460678695102980
2323624702309844184487

[1,5,15,40,114,371,1422,6334,32238,184655,1175454,
 8231308,62882262,520416569,4638303786,44292536061,
 451160065069,4882696090609,55951575728713,
 676777708544967,8617001415386120,
 115200823068725262,1613460678695102980,
 23624702309844184487]