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A261111 as a simple table

n a(n)
1 289
2 790
3 2902
4 10268
5 35934
6 127038
7 449132
8 1582692
9 5580762
10 19696792
11 69493124
12 245136960
13 864834010
14 3051137218
15 10764053222
16 37974619476
17 133971821170
18 472641282700
19 1667438793734
20 5882591495818
21 20753304044252

[289,790,2902,10268,35934,127038,449132,1582692,
 5580762,19696792,69493124,245136960,864834010,
 3051137218,10764053222,37974619476,133971821170,
 472641282700,1667438793734,5882591495818,
 20753304044252]

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Last modified September 25 11:39 EDT 2021. Contains 347654 sequences. (Running on oeis4.)