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A184139 as a simple table

n a(n)
1 5
2 25
3 130
4 650
5 2942
6 11819
7 42305
8 136564
9 402910
10 1099694
11 2805530
12 6748066
13 15412437
14 33626131
15 70430778
16 142218719
17 277853339
18 526833235
19 972034814
20 1749218190
21 3076360192
22 5297051455
23 8943742419
24 14828643610
25 24172697276

[5,25,130,650,2942,11819,42305,136564,402910,
 1099694,2805530,6748066,15412437,33626131,
 70430778,142218719,277853339,526833235,972034814,
 1749218190,3076360192,5297051455,8943742419,
 14828643610,24172697276]

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Last modified July 18 21:02 EDT 2024. Contains 374388 sequences. (Running on oeis4.)