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A291190 as a simple table

n a(n)
1 1
2 1
3 2
4 4
5 12
6 36
7 112
8 361
9 1186
10 3974
11 13524
12 46612
13 162384
14 570880
15 2022800
16 7216480
17 25900036
18 93449752
19 338772408
20 1233326352
21 4507204720
22 16528765376
23 60805491392
24 224335046602
25 829851744732
26 3077246265612
27 11436732740472
28 42593968518536
29 158941264247584
30 594169284671232
31 2224933015422432
32 8344687554060528
33 31343475208937024
34 117893400330845424
35 444019302263216224

[1,1,2,4,12,36,112,361,1186,3974,13524,46612,
 162384,570880,2022800,7216480,25900036,93449752,
 338772408,1233326352,4507204720,16528765376,
 60805491392,224335046602,829851744732,
 3077246265612,11436732740472,42593968518536,
 158941264247584,594169284671232,2224933015422432,
 8344687554060528,31343475208937024,
 117893400330845424,444019302263216224]

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Last modified June 27 22:21 EDT 2024. Contains 373753 sequences. (Running on oeis4.)