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A098347 formatted as a simple table:

n a(n)
1 1
2 5
3 16
4 60
5 213
6 771
7 2772
8 9990
9 35973
10 129573
11 466668
12 1680804
13 6053697
14 21803499
15 78529176
16 282836934
17 1018687833
18 3668986773
19 13214513016
20 47594435868
21 171419886333
22 617399427555
23 2223674634060
24 8008962525846

[1,5,16,60,213,771,2772,9990,35973,129573,466668,
 1680804,6053697,21803499,78529176,282836934,
 1018687833,3668986773,13214513016,47594435868,
 171419886333,617399427555,2223674634060,
 8008962525846]

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Last modified December 18 21:37 EST 2009. Contains 171024 sequences.


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