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A295406 as a simple table

na(n)
01
14
258
31422
449000
52174360
6118023264
77574532826
8561071549056
947111034709260
104421715905632000
11458741213603157254
1252129735913348001792
136439324687323193520608
14859089518697047400878080
15123108032319553206480143250
1618858657171509448248927617024

[1,4,58,1422,49000,2174360,118023264,7574532826,
 561071549056,47111034709260,4421715905632000,
 458741213603157254,52129735913348001792,
 6439324687323193520608,859089518697047400878080,
 123108032319553206480143250,
 18858657171509448248927617024]