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A056125 as a simple table

n a(n)
0 1
1 18
2 126
3 570
4 1980
5 5742
6 14586
7 33462
8 70785
9 140140
10 262548
11 469404
12 806208
13 1337220
14 2151180
15 3368244
16 5148297
17 7700814
18 11296450
19 16280550
20 23088780
21 32265090
22 44482230
23 60565050
24 81516825
25 108548856
26 143113608
27 186941656

[1,18,126,570,1980,5742,14586,33462,70785,140140,
 262548,469404,806208,1337220,2151180,3368244,
 5148297,7700814,11296450,16280550,23088780,
 32265090,44482230,60565050,81516825,108548856,
 143113608,186941656]

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Last modified May 12 19:25 EDT 2024. Contains 372494 sequences. (Running on oeis4.)