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A305323 as a simple table

na(n)
01
11
24
325
4211
52238
628560
7425808
87261200
9139367278
102973006344
1169775267186
121786673529746
1349565881948204
141480900541242572
1547407364553205448
161618838460981098680
1758734896900587841824
182256402484187691207152
1991499934912942249975504
203905739517580787866827872

[1,1,4,25,211,2238,28560,425808,7261200,139367278,
 2973006344,69775267186,1786673529746,
 49565881948204,1480900541242572,47407364553205448,
 1618838460981098680,58734896900587841824,
 2256402484187691207152,91499934912942249975504,
 3905739517580787866827872]