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A281655 as a simple table

na(n)
10
246
3985
47986
567884
6519656
73804074
827188104
9190081944
101307551136
118883115770
1259735869460
13398338301812
142637611297824
1517360607113512
16113677820297300
17741027989329060
184811486509126868
1931131965964391810

[0,46,985,7986,67884,519656,3804074,27188104,
 190081944,1307551136,8883115770,59735869460,
 398338301812,2637611297824,17360607113512,
 113677820297300,741027989329060,4811486509126868,
 31131965964391810]