A253372 - OEIS

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A253372 as a simple table

n	a(n)
1	49284
2	945748
3	17316309
4	105139503
5	811079978
6	3064820088
7	15266963762
8	46594669823
9	183640326404
10	504701623213
11	1742674651858
12	4556363874541
13	14582633777648
14	37447063241552
15	114895093706618
16	295691837512799

[49284,945748,17316309,105139503,811079978, 3064820088,15266963762,46594669823,183640326404, 504701623213,1742674651858,4556363874541, 14582633777648,37447063241552,114895093706618, 295691837512799]