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A031149 formatted as a simple table:

n a(n)
1 4
2 7
3 13
4 16
5 19
6 38
7 57
8 136
9 253
10 487
11 604
12 721
13 1442
14 2163
15 5164
16 9607
17 18493
18 22936
19 27379
20 54758
21 82137
22 196096
23 364813
24 702247
25 870964
26 1039681
27 2079362
28 3119043
29 7446484
30 13853287
31 26666893
32 33073696
33 39480499

[4,7,13,16,19,38,57,136,253,487,604,721,1442,2163,
 5164,9607,18493,22936,27379,54758,82137,196096,
 364813,702247,870964,1039681,2079362,3119043,
 7446484,13853287,26666893,33073696,39480499]

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Last modified December 8 08:31 EST 2009. Contains 170430 sequences.


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