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A274539 as a simple table

na(n)
01
11
23
317
4155
52079
638629
7951187
829979753
91175837345
1056066617331
113187704802281
12212628685506643
1316413606252207007
141449425836362499605
15144977415195565990619
1616285937949513614300369
172039447464767566886933057
18282862729890000953318773603

[1,1,3,17,155,2079,38629,951187,29979753,
 1175837345,56066617331,3187704802281,
 212628685506643,16413606252207007,
 1449425836362499605,144977415195565990619,
 16285937949513614300369,2039447464767566886933057,
 282862729890000953318773603]