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A253379 as a simple table

na(n)
149284
2521009
35829147
470942616
5811079978
68802760516
790160819133
8829051547587
97310278949272
1057116400940572
11433479645978767
122931863943180400
1319425553129121010
14116071717678779409

[49284,521009,5829147,70942616,811079978,
 8802760516,90160819133,829051547587,7310278949272,
 57116400940572,433479645978767,2931863943180400,
 19425553129121010,116071717678779409]