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A127681 as a simple table

n a(n)
0 1
1 1
2 2
3 4
4 9
5 19
6 42
7 90
8 198
9 428
10 936
11 2030
12 4430
13 9626
14 20978
15 45622
16 99367
17 216197
18 470736
19 1024420
20 2230183
21 4853881
22 10566170
23 22997974
24 50061240
25 108964596
26 237186018
27 516272178
28 1123772192
29 2446081048
30 5324371354
31 11589437278

[1,1,2,4,9,19,42,90,198,428,936,2030,4430,9626,
 20978,45622,99367,216197,470736,1024420,2230183,
 4853881,10566170,22997974,50061240,108964596,
 237186018,516272178,1123772192,2446081048,
 5324371354,11589437278]

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Last modified April 19 21:09 EDT 2024. Contains 371798 sequences. (Running on oeis4.)