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A058818 as a simple table

na(n)
01
13
26
319
463
5195
6613
71875
85751
917499
1053169
11161043
12487221
131471683
144441485
1513392331
1640356711
17121543683
18365898261
191101089811
203312448137
219962241251
2229954655861
2390049997139
24270661661541
25813397065075
262444101819329
277343167949235

[1,3,6,19,63,195,613,1875,5751,17499,53169,161043,
 487221,1471683,4441485,13392331,40356711,
 121543683,365898261,1101089811,3312448137,
 9962241251,29954655861,90049997139,270661661541,
 813397065075,2444101819329,7343167949235]