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A148459 formatted as a simple table:

n a(n)
0 1
1 1
2 2
3 6
4 18
5 57
6 198
7 709
8 2601
9 9864
10 38148
11 149808
12 598372
13 2419970
14 9889001
15 40838480
16 170083988
17 713613807
18 3015878875
19 12823991428
20 54829658278
21 235678930783
22 1017743418774
23 4413589486399
24 19218488856579
25 83989136588578
26 368284554761549
27 1620125911384969
28 7147971908460116

[1,1,2,6,18,57,198,709,2601,9864,38148,149808,
 598372,2419970,9889001,40838480,170083988,
 713613807,3015878875,12823991428,54829658278,
 235678930783,1017743418774,4413589486399,
 19218488856579,83989136588578,368284554761549,
 1620125911384969,7147971908460116]

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Last modified December 19 12:50 EST 2009. Contains 171053 sequences.


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