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A143640 as a simple table

na(n)
01
11
23
340
4829
526096
61216327
776192824
86123167801
9615764308672
1075666884850091
1111126407433017944
121925795142055097557
13387184416676122044032
1489407267196505737775311
1523480531627128442036603416
166953687155109949099972629873

[1,1,3,40,829,26096,1216327,76192824,6123167801,
 615764308672,75666884850091,11126407433017944,
 1925795142055097557,387184416676122044032,
 89407267196505737775311,
 23480531627128442036603416,
 6953687155109949099972629873]