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A033141 as a simple table

na(n)
11
25
325
4126
5630
63150
715751
878755
9393775
101968876
119844380
1249221900
13246109501
141230547505
156152737525
1630763687626
17153818438130
18769092190650
193845460953251
2019227304766255
2196136523831275
22480682619156376

[1,5,25,126,630,3150,15751,78755,393775,1968876,
 9844380,49221900,246109501,1230547505,6152737525,
 30763687626,153818438130,769092190650,
 3845460953251,19227304766255,96136523831275,
 480682619156376]