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A024551 as a simple table

n a(n)
0 1
1 4
2 16
3 67
4 283
5 1198
6 5074
7 21493
8 91045
9 385672
10 1633732
11 6920599
12 29316127
13 124185106
14 526056550
15 2228411305
16 9439701769
17 39987218380
18 169388575288
19 717541519531
20 3039554653411
21 12875760133174
22 54542595186106
23 231046140877597

[1,4,16,67,283,1198,5074,21493,91045,385672,
 1633732,6920599,29316127,124185106,526056550,
 2228411305,9439701769,39987218380,169388575288,
 717541519531,3039554653411,12875760133174,
 54542595186106,231046140877597]

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Last modified April 25 03:15 EDT 2024. Contains 371964 sequences. (Running on oeis4.)