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A027942 as a simple table

n a(n)
1 1
2 11
3 51
4 176
5 530
6 1490
7 4043
8 10773
9 28445
10 74770
11 196116
12 513876
13 1345861
14 3524111
15 9226935
16 24157220
17 63245318
18 165579398
19 433493615
20 1134902265
21 2971214081
22 7778740966
23 20365009896
24 53316289896
25 139583861065
26 365435294675
27 956722024443
28 2504730780248

[1,11,51,176,530,1490,4043,10773,28445,74770,
 196116,513876,1345861,3524111,9226935,24157220,
 63245318,165579398,433493615,1134902265,
 2971214081,7778740966,20365009896,53316289896,
 139583861065,365435294675,956722024443,
 2504730780248]

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Last modified April 19 04:12 EDT 2024. Contains 371782 sequences. (Running on oeis4.)