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A077236 formatted as a simple table:

n a(n)
0 4
1 11
2 40
3 149
4 556
5 2075
6 7744
7 28901
8 107860
9 402539
10 1502296
11 5606645
12 20924284
13 78090491
14 291437680
15 1087660229
16 4059203236
17 15149152715
18 56537407624
19 211000477781
20 787464503500
21 2938857536219
22 10967965641376

[4,11,40,149,556,2075,7744,28901,107860,402539,
 1502296,5606645,20924284,78090491,291437680,
 1087660229,4059203236,15149152715,56537407624,
 211000477781,787464503500,2938857536219,
 10967965641376]

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Last modified December 10 12:37 EST 2009. Contains 170569 sequences.


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