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A307309 as a simple table

n a(n)
1 1
2 6
3 26
4 99
5 348
6 1194
7 4000
8 13326
9 44058
10 144066
11 462504
12 1459194
13 4545588
14 14068554
15 43450848
16 134213808
17 414692130
18 1280610858
19 3948172380
20 12142365042
21 37235047770
22 113844652986
23 347103133068
24 1055610536520
25 3202944247674
26 9697395164616
27 29298206343284

[1,6,26,99,348,1194,4000,13326,44058,144066,
 462504,1459194,4545588,14068554,43450848,
 134213808,414692130,1280610858,3948172380,
 12142365042,37235047770,113844652986,347103133068,
 1055610536520,3202944247674,9697395164616,
 29298206343284]

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Last modified August 22 00:18 EDT 2024. Contains 375353 sequences. (Running on oeis4.)