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A135921 formatted as a simple table:

n a(n)
0 1
1 1
2 3
3 13
4 81
5 669
6 6955
7 88505
8 1346209
9 23998521
10 493956467
11 11596542533
12 307301505073
13 9110471500693
14 299893197116059
15 10888674034993905
16 433549376981078593
17 18833037527449398129
18 888439543634687700579

[1,1,3,13,81,669,6955,88505,1346209,23998521,
 493956467,11596542533,307301505073,9110471500693,
 299893197116059,10888674034993905,
 433549376981078593,18833037527449398129,
 888439543634687700579]

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Last modified November 23 17:09 EST 2009. Contains 167438 sequences.


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