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A074167 formatted as a simple table:

n a(n)
0 1
1 2
2 6
3 60
4 6
5 420
6 6
7 4620
8 32760
9 30
10 471240
11 14820
12 42
13 15180
14 556920
15 15273720
16 30
17 11171160
18 164220
19 6
20 253333080
21 2460
22 587636280
23 625757605200
24 4620
25 102
26 289380
27 6
28 170940
29 26848135265397670224000
30 33540
31 599888520
32 138

[1,2,6,60,6,420,6,4620,32760,30,471240,14820,42,
 15180,556920,15273720,30,11171160,164220,6,
 253333080,2460,587636280,625757605200,4620,102,
 289380,6,170940,26848135265397670224000,33540,
 599888520,138]

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Last modified December 16 13:01 EST 2009. Contains 170825 sequences.


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