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A002794 as a simple table

na(n)
01
11
23
316
4547
5538811
6620245817465
7692770666469127829226736
81025344764595988314871439243086711931108916434521

[1,1,3,16,547,538811,620245817465,
 692770666469127829226736,
 1025344764595988314871439243086711931108916434521]