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A259696 as a simple table

n a(n)
1 0
2 1
3 771
4 28552
5 540563
6 3830364
7 29209978
8 119337536
9 490114881
10 1659932478
11 4961414965
12 12516905184
13 33139873949
14 77515802840
15 156374512326
16 344012784128
17 669604434612
18 1292506329141
19 2292202227639
20 4210108803824
21 6929184038448
22 12639642518772
23 19287324979742
24 32384260599552

[0,1,771,28552,540563,3830364,29209978,119337536,
 490114881,1659932478,4961414965,12516905184,
 33139873949,77515802840,156374512326,344012784128,
 669604434612,1292506329141,2292202227639,
 4210108803824,6929184038448,12639642518772,
 19287324979742,32384260599552]

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Last modified March 29 11:45 EDT 2024. Contains 371278 sequences. (Running on oeis4.)