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A037769 as a simple table

na(n)
13
224
3194
41553
512427
699416
7795330
86362641
950901131
10407209048
113257672386
1226061379089
13208491032715
141667928261720
1513343426093762
16106747408750097
17853979270000779
186831834160006232

[3,24,194,1553,12427,99416,795330,6362641,
 50901131,407209048,3257672386,26061379089,
 208491032715,1667928261720,13343426093762,
 106747408750097,853979270000779,6831834160006232]