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A093630 as a simple table

na(n)
01
12
24
313
439
5159
6657
73192
816935
998296
10631531
114320963
1232517883
13257323288
142216360166
1519945970812
16193524780624
171952830925615
1821070751003175
19235689971665480
202800003524200187
2134386283795145455
22445955787460382981

[1,2,4,13,39,159,657,3192,16935,98296,631531,
 4320963,32517883,257323288,2216360166,19945970812,
 193524780624,1952830925615,21070751003175,
 235689971665480,2800003524200187,
 34386283795145455,445955787460382981]