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A001240 as a simple table

n a(n)
1 1
2 11
3 85
4 575
5 3661
6 22631
7 137845
8 833375
9 5019421
10 30174551
11 181222405
12 1087861775
13 6528756781
14 39177307271
15 235078159765
16 1410511939775
17 8463200647741
18 50779591044791
19 304678708005925

[1,11,85,575,3661,22631,137845,833375,5019421,
 30174551,181222405,1087861775,6528756781,
 39177307271,235078159765,1410511939775,
 8463200647741,50779591044791,304678708005925]

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Last modified March 29 06:34 EDT 2024. Contains 371265 sequences. (Running on oeis4.)