A048353 - OEIS

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A048353 as a simple table

n	a(n)
1	9
2	83
3	298
4	1378
5	8878
6	29641
7	298141
8	623609
9	9321378
10	28072917
11	94121667
12	329877083
13	4341484641
14	29478276559
15	62360956378
16	151284113141
17	3436394751609
18	9428037062872
19	22065558748622
20	29770520349641

[9,83,298,1378,8878,29641,298141,623609,9321378, 28072917,94121667,329877083,4341484641, 29478276559,62360956378,151284113141, 3436394751609,9428037062872,22065558748622, 29770520349641]