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A047088 as a simple table

n a(n)
1 1
2 4
3 12
4 37
5 118
6 380
7 1229
8 3989
9 12987
10 42394
11 138709
12 454768
13 1493690
14 4913969
15 16189534
16 53407853
17 176397299
18 583242159
19 1930349545
20 6394665589
21 21201345460
22 70346920007
23 233581374587
24 776105485336
25 2580316142887
26 8583746045611
27 28570407158100

[1,4,12,37,118,380,1229,3989,12987,42394,138709,
 454768,1493690,4913969,16189534,53407853,
 176397299,583242159,1930349545,6394665589,
 21201345460,70346920007,233581374587,776105485336,
 2580316142887,8583746045611,28570407158100]

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Last modified April 25 01:35 EDT 2024. Contains 371964 sequences. (Running on oeis4.)