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A327768 as a simple table

n a(n)
0 0
1 0
2 3
3 18
4 60
5 210
6 798
7 2462
8 7891
9 25148
10 84173
11 257558
12 810924
13 2515962
14 7706020
15 24261554
16 73746402
17 224417982
18 683672754
19 2057559942
20 6177146990
21 18671429714
22 55589344618
23 165403412230
24 491940143015
25 1452537550800
26 4280665171599
27 12578264746522

[0,0,3,18,60,210,798,2462,7891,25148,84173,257558,
 810924,2515962,7706020,24261554,73746402,
 224417982,683672754,2057559942,6177146990,
 18671429714,55589344618,165403412230,491940143015,
 1452537550800,4280665171599,12578264746522]

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Last modified September 9 23:53 EDT 2024. Contains 375765 sequences. (Running on oeis4.)