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A208289 as a simple table

n a(n)
1 10
2 100
3 390
4 2090
5 9900
6 49130
7 239490
8 1175440
9 5754050
10 28195750
11 138110340
12 676601470
13 3314477450
14 16237031560
15 79541647910
16 389658289890
17 1908854053840
18 9351079145150
19 45808984336150
20 224408665354600
21 1099331244406030

[10,100,390,2090,9900,49130,239490,1175440,
 5754050,28195750,138110340,676601470,3314477450,
 16237031560,79541647910,389658289890,
 1908854053840,9351079145150,45808984336150,
 224408665354600,1099331244406030]

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Last modified June 29 09:21 EDT 2022. Contains 354910 sequences. (Running on oeis4.)