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A049981 formatted as a simple table:

n a(n)
1 1
2 2
3 4
4 6
5 9
6 13
7 17
8 21
9 28
10 34
11 40
12 49
13 56
14 64
15 77
16 86
17 95
18 110
19 120
20 132
21 150
22 163
23 175
24 195
25 210
26 225
27 248
28 265
29 280
30 308
31 324
32 342
33 370
34 390
35 412
36 445
37 464
38 486
39 519
40 545
41 566
42 605
43 627
44 653
45 696
46 723
47 747
48 790
49 817
50 850

[1,2,4,6,9,13,17,21,28,34,40,49,56,64,77,86,95,
 110,120,132,150,163,175,195,210,225,248,265,280,
 308,324,342,370,390,412,445,464,486,519,545,566,
 605,627,653,696,723,747,790,817,850]

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Last modified December 5 20:25 EST 2009. Contains 170428 sequences.


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