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A244887 as a simple table

n a(n)
2 2
3 20
4 135
5 770
6 4004
7 19656
8 92820
9 426360
10 1918620
11 8498776
12 37182145
13 161056350
14 691945800
15 2952675600
16 12527780760
17 52895074320
18 222399744300
19 931689977400
20 3890668331550
21 16201562020644
22 67298796085752
23 278927990831600
24 1153747598439800
25 4763749454427600
26 19637233862140440

[2,20,135,770,4004,19656,92820,426360,1918620,
 8498776,37182145,161056350,691945800,2952675600,
 12527780760,52895074320,222399744300,931689977400,
 3890668331550,16201562020644,67298796085752,
 278927990831600,1153747598439800,4763749454427600,
 19637233862140440]

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Last modified March 28 14:21 EDT 2024. Contains 371254 sequences. (Running on oeis4.)