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A035309 formatted as a simple table:

n a(n)
1 1
2 1
3 2
4 1
5 5
6 10
7 14
8 70
9 21
10 42
11 420
12 483
13 132
14 2310
15 6468
16 1485
17 429
18 12012
19 66066
20 56628
21 1430
22 60060
23 570570
24 1169740
25 225225
26 4862
27 291720
28 4390386
29 17454580
30 12317877
31 16796
32 1385670
33 31039008
34 211083730
35 351683046
36 59520825
37 58786
38 6466460
39 205633428
40 2198596400
41 7034538511
42 4304016990

[1,1,2,1,5,10,14,70,21,42,420,483,132,2310,6468,
 1485,429,12012,66066,56628,1430,60060,570570,
 1169740,225225,4862,291720,4390386,17454580,
 12317877,16796,1385670,31039008,211083730,
 351683046,59520825,58786,6466460,205633428,
 2198596400,7034538511,4304016990]

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Last modified December 10 00:48 EST 2009. Contains 170565 sequences.


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