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A053131 as a simple table

n a(n)
9 10
10 220
11 2002
12 11440
13 48620
14 167960
15 497420
16 1307504
17 3124550
18 6906900
19 14307150
20 28048800
21 52451256
22 94143280
23 163011640
24 273438880
25 445891810
26 708930508
27 1101716330
28 1677106640
29 2505433700
30 3679075400
31 5317936260
32 7575968400
33 10648873950
34 14783142660

[10,220,2002,11440,48620,167960,497420,1307504,
 3124550,6906900,14307150,28048800,52451256,
 94143280,163011640,273438880,445891810,708930508,
 1101716330,1677106640,2505433700,3679075400,
 5317936260,7575968400,10648873950,14783142660]

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Last modified March 28 18:04 EDT 2024. Contains 371254 sequences. (Running on oeis4.)