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A222504 as a simple table

n a(n)
1 0
2 4
3 4
4 35
5 87
6 496
7 1335
8 7552
9 21382
10 122942
11 348597
12 2045395
13 5812073
14 34558802
15 98272393
16 589386556
17 1678849694
18 10123122248
19 28893573238
20 174842616458
21 500084523708
22 3033764103592
23 8694157659203
24 52844583851218
25 151707321284408

[0,4,4,35,87,496,1335,7552,21382,122942,348597,
 2045395,5812073,34558802,98272393,589386556,
 1678849694,10123122248,28893573238,174842616458,
 500084523708,3033764103592,8694157659203,
 52844583851218,151707321284408]

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Last modified April 25 06:14 EDT 2024. Contains 371964 sequences. (Running on oeis4.)