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A042138 as a simple table

na(n)
024
149
273
3195
41048
525347
6127783
7280913
8408696
91098305
1053127336
11107352977
12160480313
13428313603
142302048328
1555677473475
16280689415703
17617056304881
18897745720584
192412547746049
20116700037530936
21235812622807921
22352512660338857
23940837943485635

[24,49,73,195,1048,25347,127783,280913,408696,
 1098305,53127336,107352977,160480313,428313603,
 2302048328,55677473475,280689415703,617056304881,
 897745720584,2412547746049,116700037530936,
 235812622807921,352512660338857,940837943485635]