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A187693 as a simple table

n a(n)
0 0
1 0
2 1
3 11
4 57
5 229
6 815
7 2715
8 8701
9 27233
10 83979
11 256519
12 778745
13 2354637
14 7100743
15 21375923
16 64275189
17 193120441
18 579951107
19 1741032927
20 5225458033
21 15681092645
22 47052715071
23 141177019531
24 423568807277
25 1270781919249
26 3812496752635
27 11437792247735
28 34313980722921
29 102943150128253
30 308831866303799
31 926500430749539

[0,0,1,11,57,229,815,2715,8701,27233,83979,256519,
 778745,2354637,7100743,21375923,64275189,
 193120441,579951107,1741032927,5225458033,
 15681092645,47052715071,141177019531,423568807277,
 1270781919249,3812496752635,11437792247735,
 34313980722921,102943150128253,308831866303799,
 926500430749539]

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Last modified April 24 06:07 EDT 2024. Contains 371918 sequences. (Running on oeis4.)