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A197053 as a simple table

na(n)
17
226
3156
4692
53580
617742
788056
8439338
92192602
1010912392
1154394628
12271160024
131351103246
146733077562
1533557756016
16167232569172
17833404135538
184153405692526
1920698773896328
20103153449929238
21514074952403758

[7,26,156,692,3580,17742,88056,439338,2192602,
 10912392,54394628,271160024,1351103246,6733077562,
 33557756016,167232569172,833404135538,
 4153405692526,20698773896328,103153449929238,
 514074952403758]