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A131351 as a simple table

na(n)
01
11
22
34
49
524
677
7295
81329
96924
1041030
11272271
121996406
1316000511
14138953665
151298206570
1612969761907
17137846434950
181551712558368
1918429620298121
20230175973108212
213014142623764514
2241275488455847862
23589698136493691293

[1,1,2,4,9,24,77,295,1329,6924,41030,272271,
 1996406,16000511,138953665,1298206570,12969761907,
 137846434950,1551712558368,18429620298121,
 230175973108212,3014142623764514,
 41275488455847862,589698136493691293]