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A231439 as a simple table

n a(n)
1 23
2 104
3 561
4 3071
5 21472
6 133646
7 919000
8 6530487
9 46899990
10 351910410
11 2629723769
12 20061701402
13 154031198836
14 1186422216734
15 9204115370568
16 71469834411742
17 556458026486814
18 4340103184723855
19 33868912292912126

[23,104,561,3071,21472,133646,919000,6530487,
 46899990,351910410,2629723769,20061701402,
 154031198836,1186422216734,9204115370568,
 71469834411742,556458026486814,4340103184723855,
 33868912292912126]

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Last modified January 29 20:26 EST 2023. Contains 359926 sequences. (Running on oeis4.)