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A253636 as a simple table

n a(n)
1 1
2 258
3 7076
4 79430
5 542409
6 2685004
7 10592400
8 35277012
9 103008345
10 270739678
11 652829892
12 1464901802
13 3092704433
14 6196296120
15 11862778432
16 21824228040
17 38761435089
18 66718602714
19 111659333380
20 182200064046
21 290563654073
22 453803117636
23 695353566480
24 1046979329500

[1,258,7076,79430,542409,2685004,10592400,
 35277012,103008345,270739678,652829892,1464901802,
 3092704433,6196296120,11862778432,21824228040,
 38761435089,66718602714,111659333380,182200064046,
 290563654073,453803117636,695353566480,
 1046979329500]

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Last modified March 28 14:38 EDT 2024. Contains 371254 sequences. (Running on oeis4.)