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A115137 formatted as a simple table:

n a(n)
0 1
1 1
2 7
3 41
4 247
5 1545
6 9975
7 66057
8 446455
9 3067913
10 21372919
11 150618121
12 1071841271
13 7691763721
14 55600938999
15 404488323081
16 2959189475319
17 21757613309961
18 160691417776119
19 1191577871450121
20 8868160862158839

[1,1,7,41,247,1545,9975,66057,446455,3067913,
 21372919,150618121,1071841271,7691763721,
 55600938999,404488323081,2959189475319,
 21757613309961,160691417776119,1191577871450121,
 8868160862158839]

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Last modified December 20 16:54 EST 2009. Contains 171081 sequences.


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