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A326895 as a simple table

na(n)
10
20
31
46
548
6370
73341
833966
9393468
105111100
1173753685
121170469192
1320263758984
14380047816638
157676106093049
16166114206920706
173834434320842720
1894042629507775794
192442147034668044933
2066942194905680941268
211931543452344523778392
2258519191359156026158522

[0,0,1,6,48,370,3341,33966,393468,5111100,
 73753685,1170469192,20263758984,380047816638,
 7676106093049,166114206920706,3834434320842720,
 94042629507775794,2442147034668044933,
 66942194905680941268,1931543452344523778392,
 58519191359156026158522]