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A041981 as a simple table

n a(n)
0 1
1 1
2 2
3 3
4 17
5 20
6 97
7 505
8 1107
9 6040
10 25267
11 31307
12 181802
13 213109
14 394911
15 608020
16 27147791
17 27755811
18 54903602
19 82659413
20 468200667
21 550860080
22 2671640987
23 13909065015
24 30489771017
25 166357920100
26 695921451417
27 862279371517
28 5007318309002

[1,1,2,3,17,20,97,505,1107,6040,25267,31307,
 181802,213109,394911,608020,27147791,27755811,
 54903602,82659413,468200667,550860080,2671640987,
 13909065015,30489771017,166357920100,695921451417,
 862279371517,5007318309002]

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Last modified April 16 05:35 EDT 2024. Contains 371697 sequences. (Running on oeis4.)