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A087115 as a simple table

n a(n)
1 0
2 1
3 18
4 137
5 650
6 2350
7 6860
8 17609
9 39870
10 83976
11 162382
12 301070
13 522886
14 885284
15 1424468
16 2254537
17 3419448
18 5143987
19 7448874
20 10750712
21 15015872
22 20948610
23 28373444
24 38539022
25 50863150
26 67454492
27 87209316
28 113326308
29 143748766
30 183759900
31 229271536

[0,1,18,137,650,2350,6860,17609,39870,83976,
 162382,301070,522886,885284,1424468,2254537,
 3419448,5143987,7448874,10750712,15015872,
 20948610,28373444,38539022,50863150,67454492,
 87209316,113326308,143748766,183759900,229271536]

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Last modified November 24 07:14 EST 2020. Contains 338607 sequences. (Running on oeis4.)