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A309452 as a simple table

n a(n)
0 0
1 2
2 9
3 107
4 450
5 450
6 67678
7 655923
8 2303009
9 13832611
10 54186218
11 1749037712
12 13612998170
13 27454285371
14 124343295778
15 4193681732872
16 18436366262701
17 217833949680307
18 1380986519616342
19 3009400117526791
20 3009400117526791
21 162593932712750793
22 3513869117212454835

[0,2,9,107,450,450,67678,655923,2303009,13832611,
 54186218,1749037712,13612998170,27454285371,
 124343295778,4193681732872,18436366262701,
 217833949680307,1380986519616342,3009400117526791,
 3009400117526791,162593932712750793,
 3513869117212454835]

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Last modified April 24 16:34 EDT 2024. Contains 371961 sequences. (Running on oeis4.)