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A056783 as a simple table

n a(n)
1 1
2 1
3 3
4 7
5 20
6 62
7 204
8 709
9 2526
10 9212
11 33989
12 126838
13 476597
14 1802618
15 6850969
16 26153537
17 100207548
18 385225375
19 1485216987
20 5741272625
21 22246000726
22 86383442996
23 336093551268
24 1309998354125
25 5114452295933
26 19998173607505
27 78306014924606
28 307022185565345

[1,1,3,7,20,62,204,709,2526,9212,33989,126838,
 476597,1802618,6850969,26153537,100207548,
 385225375,1485216987,5741272625,22246000726,
 86383442996,336093551268,1309998354125,
 5114452295933,19998173607505,78306014924606,
 307022185565345]

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Last modified April 25 03:15 EDT 2024. Contains 371964 sequences. (Running on oeis4.)