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A320430 as a simple table

na(n)
01
11
22
35
410
537
660
7295
8658
92621
105368
1138535
1266506
13551529
141234264
155004697
1613721836
17143935131
18256835337
192971237021
206485081140
2135162930303
2295872321543
231315397878401
242399236456202
2525866803180347
2672374386475590
27563368417647305
281479943119911866

[1,1,2,5,10,37,60,295,658,2621,5368,38535,66506,
 551529,1234264,5004697,13721836,143935131,
 256835337,2971237021,6485081140,35162930303,
 95872321543,1315397878401,2399236456202,
 25866803180347,72374386475590,563368417647305,
 1479943119911866]