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A128419 formatted as a simple table:

n a(n)
0 1
1 4
2 25
3 168
4 1181
5 8524
6 62609
7 465616
8 3495013
9 26423604
10 200920985
11 1534936440
12 11771854381
13 90578698396
14 698921030945
15 5406132020128
16 41905249405301
17 325434733291396
18 2531523208218665
19 19721766268370248

[1,4,25,168,1181,8524,62609,465616,3495013,
 26423604,200920985,1534936440,11771854381,
 90578698396,698921030945,5406132020128,
 41905249405301,325434733291396,2531523208218665,
 19721766268370248]

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Last modified December 6 13:45 EST 2009. Contains 170429 sequences.


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