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A037585 formatted as a simple table:

n a(n)
1 3
2 19
3 117
4 703
5 4221
6 25327
7 151965
8 911791
9 5470749
10 32824495
11 196946973
12 1181681839
13 7090091037
14 42540546223
15 255243277341
16 1531459664047
17 9188757984285
18 55132547905711
19 330795287434269
20 1984771724605615

[3,19,117,703,4221,25327,151965,911791,5470749,
 32824495,196946973,1181681839,7090091037,
 42540546223,255243277341,1531459664047,
 9188757984285,55132547905711,330795287434269,
 1984771724605615]

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Last modified December 20 00:58 EST 2009. Contains 171054 sequences.


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