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A013726 formatted as a simple table:

n a(n)
0 21
1 9261
2 4084101
3 1801088541
4 794280046581
5 350277500542221
6 154472377739119461
7 68122318582951682301
8 30041942495081691894741
9 13248496640331026125580781
10 5842587018385982521381124421

[21,9261,4084101,1801088541,794280046581,
 350277500542221,154472377739119461,
 68122318582951682301,30041942495081691894741,
 13248496640331026125580781,
 5842587018385982521381124421]

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Last modified November 27 14:50 EST 2009. Contains 167570 sequences.


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