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A039740 as a simple table

n a(n)
1 1
2 4
3 12
4 44
5 182
6 796
7 3612
8 16786
9 79426
10 381250
11 1851832
12 9086022
13 44970688
14 224279188
15 1126038472
16 5687027204
17 28873452032
18 147281732692
19 754443210294

[1,4,12,44,182,796,3612,16786,79426,381250,
 1851832,9086022,44970688,224279188,1126038472,
 5687027204,28873452032,147281732692,754443210294]

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Last modified March 28 14:21 EDT 2024. Contains 371254 sequences. (Running on oeis4.)