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A027201 formatted as a simple table:

n a(n)
0 1
1 2
2 11
3 52
4 269
5 1380
6 7333
7 37772
8 203145
9 1044234
10 5643127
11 28956878
12 156801451
13 803721390
14 4356085375
15 22313412784
16 120988175101
17 619498949770 

[1,2,11,52,269,1380,7333,37772,203145,1044234,
 5643127,28956878,156801451,803721390,4356085375,
 22313412784,120988175101,619498949770]

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Last modified December 16 17:13 EST 2009. Contains 170825 sequences.

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