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A253655 as a simple table

n a(n)
1 9
2 116
3 2580
4 19544
5 295020
6 804076
7 4022064
8 7839780
9 24670536
10 99133020
11 147912160
12 427612404
13 791672280
14 1053546956
15 1796518224
16 3694034916
17 7030054140
18 8586690620
19 15076346164
20 21349986840
21 25222305336
22 40514492720
23 54489965796
24 82830096360
25 138828513824
26 176919851700

[9,116,2580,19544,295020,804076,4022064,7839780,
 24670536,99133020,147912160,427612404,791672280,
 1053546956,1796518224,3694034916,7030054140,
 8586690620,15076346164,21349986840,25222305336,
 40514492720,54489965796,82830096360,138828513824,
 176919851700]

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Last modified March 29 02:23 EDT 2024. Contains 371264 sequences. (Running on oeis4.)