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A048351 as a simple table

na(n)
14
226
3216
41291
55164
668313
7163284
8785294
93559026
1026393686
11129099069
12254296413
13816435342
144081257976
1580413106314
16215329205326
172463064689907
185165911014784
1924832773982716
2081401883640163

[4,26,216,1291,5164,68313,163284,785294,3559026,
 26393686,129099069,254296413,816435342,4081257976,
 80413106314,215329205326,2463064689907,
 5165911014784,24832773982716,81401883640163]