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A158341 as a simple table

na(n)
00
11
24
318
4128
51404
618261
7310346
85896727
9135624239
103933101823
11121926157640
124511267827531
13184961980943492
147953365180610400

[0,1,4,18,128,1404,18261,310346,5896727,135624239,
 3933101823,121926157640,4511267827531,
 184961980943492,7953365180610400]