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A296015 as a simple table

n a(n)
1 4
2 28
3 91
4 366
5 1644
6 6545
7 26865
8 112345
9 461363
10 1902251
11 7867396
12 32451301
13 133919803
14 552939041
15 2282127828
16 9419468870
17 38881999590
18 160489339983
19 662439317422
20 2734335195143
21 11286359484536
22 46586079223617

[4,28,91,366,1644,6545,26865,112345,461363,
 1902251,7867396,32451301,133919803,552939041,
 2282127828,9419468870,38881999590,160489339983,
 662439317422,2734335195143,11286359484536,
 46586079223617]

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Last modified September 20 23:04 EDT 2021. Contains 347596 sequences. (Running on oeis4.)