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A055234 formatted as a simple table:

n a(n)
1 1
2 3
3 2
4 14
5 56
6 6
7 12
8 42
9 30
10 168
11 2580
12 210
13 630
14 420
15 840
16 20790
17 416640
18 9240
19 291060
20 83160
21 120120
22 5165160
23 1719277560
24 43825320
25 26860680
26 277560360
27 1304863560
28 569729160
29 587133466920
30 16522145640
31 33044291280

[1,3,2,14,56,6,12,42,30,168,2580,210,630,420,840,
 20790,416640,9240,291060,83160,120120,5165160,
 1719277560,43825320,26860680,277560360,1304863560,
 569729160,587133466920,16522145640,33044291280]

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Last modified November 30 13:13 EST 2009. Contains 167758 sequences.


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