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A081074 as a simple table

n a(n)
1 0
2 18
3 141
4 984
5 6762
6 46365
7 317808
8 2178306
9 14930349
10 102334152
11 701408730
12 4807526973
13 32951280096
14 225851433714
15 1548008755917
16 10610209857720
17 72723460248138
18 498454011879261
19 3416454622906704
20 23416728348467682

[0,18,141,984,6762,46365,317808,2178306,14930349,
 102334152,701408730,4807526973,32951280096,
 225851433714,1548008755917,10610209857720,
 72723460248138,498454011879261,3416454622906704,
 23416728348467682]

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Last modified March 29 05:16 EDT 2024. Contains 371264 sequences. (Running on oeis4.)