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A002746 as a simple table

na(n)
11
24
313
450
5203
61154
76627
849356
9403293
103858376
1133929377
12460614670
135168544119
1464518640406
15946910125319
1616124114481720
17221243980745433
184261440137319852
1968524390012831189
201477309421907315082

[1,4,13,50,203,1154,6627,49356,403293,3858376,
 33929377,460614670,5168544119,64518640406,
 946910125319,16124114481720,221243980745433,
 4261440137319852,68524390012831189,
 1477309421907315082]