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A299594 as a simple table

n a(n)
1 21
2 26
3 65
4 250
5 541
6 1225
7 2583
8 5488
9 11899
10 25570
11 54750
12 117697
13 252985
14 543115
15 1166472
16 2505919
17 5382274
18 11560042
19 24830445
20 53333641
21 114554095
22 246050920
23 528494067
24 1135150426
25 2438187262
26 5236983073
27 11248510665
28 24160660963

[21,26,65,250,541,1225,2583,5488,11899,25570,
 54750,117697,252985,543115,1166472,2505919,
 5382274,11560042,24830445,53333641,114554095,
 246050920,528494067,1135150426,2438187262,
 5236983073,11248510665,24160660963]

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Last modified June 27 16:27 EDT 2022. Contains 354896 sequences. (Running on oeis4.)