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A100525 as a simple table

na(n)
04
122
2128
3746
44348
525342
6147704
7860882
85017588
929244646
10170450288
11993457082
125790292204
1333748296142
14196699484648
151146448611746
166681992185828
1738945504503222
18226991034833504
191323000704497802
207711013192153308
2144943078448422046

[4,22,128,746,4348,25342,147704,860882,5017588,
 29244646,170450288,993457082,5790292204,
 33748296142,196699484648,1146448611746,
 6681992185828,38945504503222,226991034833504,
 1323000704497802,7711013192153308,
 44943078448422046]