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A306409 as a simple table

n a(n)
0 0
1 1
2 3
3 10
4 34
5 120
6 434
7 1597
8 5949
9 22363
10 84655
11 322245
12 1232205
13 4729453
14 18210279
15 70307546
16 272087770
17 1055139408
18 4099200524
19 15951053566
20 62159391150
21 242542955378
22 947504851414
23 3705431067156
24 14505084243860
25 56831711106496
26 222853334131080

[0,1,3,10,34,120,434,1597,5949,22363,84655,322245,
 1232205,4729453,18210279,70307546,272087770,
 1055139408,4099200524,15951053566,62159391150,
 242542955378,947504851414,3705431067156,
 14505084243860,56831711106496,222853334131080]

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Last modified April 19 21:09 EDT 2024. Contains 371798 sequences. (Running on oeis4.)