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A001305 formatted as a simple table:

n a(n)
0 1
1 2
2 4
3 6
4 9
5 13
6 18
7 24
8 31
9 39
10 50
11 62
12 77
13 93
14 112
15 134
16 159
17 187
18 218
19 252
20 293
21 337
22 388
23 442
24 503
25 571
26 646
27 728
28 817
29 913
30 1022
31 1138
32 1267
33 1403
34 1552
35 1714
36 1889
37 2077
38 2278
39 2492
40 2728
41 2977
42 3248

[1,2,4,6,9,13,18,24,31,39,50,62,77,93,112,134,159,
 187,218,252,293,337,388,442,503,571,646,728,817,
 913,1022,1138,1267,1403,1552,1714,1889,2077,2278,
 2492,2728,2977,3248]

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Last modified December 1 19:22 EST 2009. Contains 167811 sequences.


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