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A127007 as a simple table

n a(n)
1 1
2 1
3 4
4 5
5 16
6 82
7 169
8 541
9 2272
10 17965
11 44407
12 201751
13 801515
14 4890886
15 52218595
16 165519640
17 835947970
18 4290442728
19 24096524166
20 179566203960
21 2739764737710
22 9938147178960
23 60997160143920
24 331360222255920
25 2154105076695000

[1,1,4,5,16,82,169,541,2272,17965,44407,201751,
 801515,4890886,52218595,165519640,835947970,
 4290442728,24096524166,179566203960,2739764737710,
 9938147178960,60997160143920,331360222255920,
 2154105076695000]

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Last modified April 18 06:24 EDT 2024. Contains 371769 sequences. (Running on oeis4.)