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A019475 formatted as a simple table:

n a(n)
0 2
1 10
2 51
3 261
4 1336
5 6839
6 35009
7 179212
8 917391
9 4696149
10 24039712
11 123059927
12 629947050
13 3224715759
14 16507406022
15 84501851928
16 432567234958
17 2214323218841
18 11335179646638
19 58025087091309

[2,10,51,261,1336,6839,35009,179212,917391,
 4696149,24039712,123059927,629947050,3224715759,
 16507406022,84501851928,432567234958,
 2214323218841,11335179646638,58025087091309]

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Last modified December 19 21:04 EST 2009. Contains 171054 sequences.


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