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A250159 as a simple table

n a(n)
1 1212
2 50228
3 721644
4 5682771
5 30540568
6 126272510
7 431428872
8 1275205749
9 3363667972
10 8094090840
11 18057831188
12 37810573671
13 75010469184
14 142049830978
15 258334922192
16 453401198121
17 771088399500
18 1275041371324
19 2055848647164

[1212,50228,721644,5682771,30540568,126272510,
 431428872,1275205749,3363667972,8094090840,
 18057831188,37810573671,75010469184,142049830978,
 258334922192,453401198121,771088399500,
 1275041371324,2055848647164]

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Last modified December 3 22:32 EST 2021. Contains 349468 sequences. (Running on oeis4.)