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A037523 formatted as a simple table:

n a(n)
1 2
2 13
3 78
4 470
5 2821
6 16926
7 101558
8 609349
9 3656094
10 21936566
11 131619397
12 789716382
13 4738298294
14 28429789765
15 170578738590
16 1023472431542
17 6140834589253
18 36845007535518
19 221070045213110
20 1326420271278661

[2,13,78,470,2821,16926,101558,609349,3656094,
 21936566,131619397,789716382,4738298294,
 28429789765,170578738590,1023472431542,
 6140834589253,36845007535518,221070045213110,
 1326420271278661]

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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.


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