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A161899 as a simple table

n a(n)
0 1
1 21
2 230
3 1750
4 10394
5 51338
6 219373
7 833129
8 2867249
9 9073845
10 26706681
11 73769301
12 192639951
13 478480891
14 1136148412
15 2590157556
16 5690334091
17 12085148911
18 24881271591
19 49780020675
20 96990931345
21 184385864445

[1,21,230,1750,10394,51338,219373,833129,2867249,
 9073845,26706681,73769301,192639951,478480891,
 1136148412,2590157556,5690334091,12085148911,
 24881271591,49780020675,96990931345,184385864445]

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Last modified March 29 05:48 EDT 2024. Contains 371265 sequences. (Running on oeis4.)