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A242818 as a simple table

na(n)
01
11
23
35
419
539
6173
7407
82025
95281
1028787
1181597
12479851
131459015
149156093
1529582303
16196506001
17669822849
184680247715
1916737058997
20122398824579
21457140004519
223484655325197
2313541735424615
24107230543328761
25432232193519521
263545227970258067

[1,1,3,5,19,39,173,407,2025,5281,28787,81597,
 479851,1459015,9156093,29582303,196506001,
 669822849,4680247715,16737058997,122398824579,
 457140004519,3484655325197,13541735424615,
 107230543328761,432232193519521,3545227970258067]