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A316461 as a simple table

n a(n)
0 1
1 9
2 63
3 354
4 1755
5 7866
6 32682
7 127458
8 471681
9 1668313
10 5673501
11 18635229
12 59342520
13 183768255
14 554843493
15 1636855647
16 4727195028
17 13386032649
18 37219413972
19 101741003451
20 273721954086
21 725498278359
22 1896086574252
23 4890111992460
24 12454590256587

[1,9,63,354,1755,7866,32682,127458,471681,1668313,
 5673501,18635229,59342520,183768255,554843493,
 1636855647,4727195028,13386032649,37219413972,
 101741003451,273721954086,725498278359,
 1896086574252,4890111992460,12454590256587]

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Last modified September 25 13:01 EDT 2020. Contains 337344 sequences. (Running on oeis4.)