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A263588 as a simple table

n a(n)
1 4
2 134
3 1992
4 27650
5 343431
6 3777963
7 38762619
8 377102980
9 3519017214
10 31782863567
11 279755669078
12 2411988669554
13 20450270031430
14 171047927517261
15 1414934370045463
16 11599885089631470
17 94407727875281839
18 763843712572305864

[4,134,1992,27650,343431,3777963,38762619,
 377102980,3519017214,31782863567,279755669078,
 2411988669554,20450270031430,171047927517261,
 1414934370045463,11599885089631470,
 94407727875281839,763843712572305864]

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Last modified December 6 21:00 EST 2022. Contains 358648 sequences. (Running on oeis4.)