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A149855 formatted as a simple table:

n a(n)
0 1
1 2
2 5
3 13
4 37
5 119
6 397
7 1364
8 4690
9 16567
10 60099
11 221639
12 824168
13 3076794
14 11626300
15 44410611
16 171024300
17 661133266
18 2566409626
19 10027307231
20 39409100079
21 155553063846
22 615628813008
23 2444688640372
24 9747085883927
25 39001498700419
26 156466842555659
27 629063961684359
28 2535651643941736

[1,2,5,13,37,119,397,1364,4690,16567,60099,221639,
 824168,3076794,11626300,44410611,171024300,
 661133266,2566409626,10027307231,39409100079,
 155553063846,615628813008,2444688640372,
 9747085883927,39001498700419,156466842555659,
 629063961684359,2535651643941736]

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Last modified December 4 23:11 EST 2009. Contains 170347 sequences.


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