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A195575 as a simple table

na(n)
10
25
3260
42289
54991
67020
794635
85103280
944852079
1097850481
11137599280
121855038645
13100034487540
14879190467169
151918065106671
162697221086300
1736362467421275
181960876019662560
1917233891492577759
2037597912123131361

[0,5,260,2289,4991,7020,94635,5103280,44852079,
 97850481,137599280,1855038645,100034487540,
 879190467169,1918065106671,2697221086300,
 36362467421275,1960876019662560,17233891492577759,
 37597912123131361]