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A073724 as a simple table

na(n)
01
13
29
331
4117
5459
61825
77287
829133
9116515
10466041
111864143
127456549
1329826171
14119304657
15477218599
161908874365
177635497427
1830541989673
19122167958655
20488671834581
211954687338283
227818749353089
2331274997412311

[1,3,9,31,117,459,1825,7287,29133,116515,466041,
 1864143,7456549,29826171,119304657,477218599,
 1908874365,7635497427,30541989673,122167958655,
 488671834581,1954687338283,7818749353089,
 31274997412311]