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A302610 as a simple table

na(n)
00
10
22
33
44
520
6158
7819
83624
933984
10427482
113819915
1229665260
13404822340
146948032310
1588407058635
16991515848400
1717715286764000
18383952670412850
196349179054589875
2093532380775766100
212063197602667372500
2253913667654307868750
231098018631195048591875

[0,0,2,3,4,20,158,819,3624,33984,427482,3819915,
 29665260,404822340,6948032310,88407058635,
 991515848400,17715286764000,383952670412850,
 6349179054589875,93532380775766100,
 2063197602667372500,53913667654307868750,
 1098018631195048591875]