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A072472 as a simple table

n a(n)
1 3
2 20
3 42
4 7920
5 156
6 57120
7 342
8 212520
9 342014400
10 930
11 1673844480
12 2430480
13 1806
14 4280760
15 16529385600
16 32441381280
17 3660
18 71852901120
19 23319240
20 5256
21 200133133200
22 44102880
23 418397031360
24 5827054819622400
25 97990200
26 10506
27 123854640
28 11772
29 154529760

[3,20,42,7920,156,57120,342,212520,342014400,930,
 1673844480,2430480,1806,4280760,16529385600,
 32441381280,3660,71852901120,23319240,5256,
 200133133200,44102880,418397031360,
 5827054819622400,97990200,10506,123854640,11772,
 154529760]

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Last modified April 18 11:52 EDT 2024. Contains 371779 sequences. (Running on oeis4.)