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A000208 as a simple table

n a(n)
0 1
1 1
2 3
3 4
4 12
5 28
6 94
7 298
8 1044
9 3658
10 13164
11 47710
12 174948
13 645436
14 2397342
15 8948416
16 33556500
17 126324496
18 477225962
19 1808414182
20 6871973952
21 26178873448
22 99955697946
23 382438918234
24 1466015854100
25 5629499869780

[1,1,3,4,12,28,94,298,1044,3658,13164,47710,
 174948,645436,2397342,8948416,33556500,126324496,
 477225962,1808414182,6871973952,26178873448,
 99955697946,382438918234,1466015854100,
 5629499869780]

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Last modified May 1 23:54 EDT 2024. Contains 372178 sequences. (Running on oeis4.)