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A208248 as a simple table

na(n)
00
11
25
340
4431
55826
694657
71795900
838963535
9951398890
1025819760021
11770959012704
1225117397416795
13886626537549130
1433708625339151505
151373237757290215156
1659677939242566840303
172755753623830236494930
18134746033233724391374765
196954962673986411576581000

[0,1,5,40,431,5826,94657,1795900,38963535,
 951398890,25819760021,770959012704,25117397416795,
 886626537549130,33708625339151505,
 1373237757290215156,59677939242566840303,
 2755753623830236494930,134746033233724391374765,
 6954962673986411576581000]