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A269431 as a simple table

n a(n)
1 5
2 25
3 125
4 615
5 2995
6 14455
7 69235
8 329430
9 1558430
10 7334806
11 34364270
12 160340610
13 745362730
14 3453222850
15 15949215754
16 73454841775
17 337413819915
18 1546145183895
19 7068979186035
20 32251365241137
21 146853223312325
22 667445619383425

[5,25,125,615,2995,14455,69235,329430,1558430,
 7334806,34364270,160340610,745362730,3453222850,
 15949215754,73454841775,337413819915,
 1546145183895,7068979186035,32251365241137,
 146853223312325,667445619383425]

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Last modified February 26 20:11 EST 2024. Contains 370352 sequences. (Running on oeis4.)