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A005052 as a simple table

n a(n)
0 10
1 30
2 90
3 270
4 810
5 2430
6 7290
7 21870
8 65610
9 196830
10 590490
11 1771470
12 5314410
13 15943230
14 47829690
15 143489070
16 430467210
17 1291401630
18 3874204890
19 11622614670
20 34867844010
21 104603532030
22 313810596090
23 941431788270
24 2824295364810
25 8472886094430

[10,30,90,270,810,2430,7290,21870,65610,196830,
 590490,1771470,5314410,15943230,47829690,
 143489070,430467210,1291401630,3874204890,
 11622614670,34867844010,104603532030,313810596090,
 941431788270,2824295364810,8472886094430]

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Last modified December 10 20:48 EST 2017. Contains 295856 sequences.