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A253882 as a simple table

n a(n)
4 1
5 1
6 2
7 6
8 17
9 73
10 389
11 2274
12 14502
13 97033
14 672781
15 4792530
16 34911786
17 259106122
18 1954315346
19 14949368524
20 115784496932
21 906736988527
22 7171613842488
23 57231089062625
24 460428456484557
25 3731572377382341
26 30447133566946517
27 249968326771680542
28 2063931874299323140

[1,1,2,6,17,73,389,2274,14502,97033,672781,
 4792530,34911786,259106122,1954315346,14949368524,
 115784496932,906736988527,7171613842488,
 57231089062625,460428456484557,3731572377382341,
 30447133566946517,249968326771680542,
 2063931874299323140]

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Last modified April 19 19:02 EDT 2024. Contains 371798 sequences. (Running on oeis4.)