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A003087 formatted as a simple table:

n a(n)
0 1
1 1
2 2
3 6
4 31
5 302
6 5984
7 243668
8 20286025
9 3424938010
10 1165948612902
11 797561675349580
12 1094026876269892596
13 3005847365735456265830
14 16530851611091131512031070
15 181908117707763484218885361402

[1,1,2,6,31,302,5984,243668,20286025,3424938010,
 1165948612902,797561675349580,1094026876269892596,
 3005847365735456265830,16530851611091131512031070,
 181908117707763484218885361402]

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.


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