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A018963 as a simple table

na(n)
23
311
444
5190
61084
75876
833127
9195616
101195351
117647210
1250776030
13344459677
142363407119
1516295430670
16112573797968

[3,11,44,190,1084,5876,33127,195616,1195351,
 7647210,50776030,344459677,2363407119,16295430670,
 112573797968]