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A001859 as a simple table

n a(n)
0 0
1 2
2 5
3 10
4 16
5 24
6 33
7 44
8 56
9 70
10 85
11 102
12 120
13 140
14 161
15 184
16 208
17 234
18 261
19 290
20 320
21 352
22 385
23 420
24 456
25 494
26 533
27 574
28 616
29 660
30 705
31 752
32 800
33 850
34 901
35 954
36 1008
37 1064
38 1121
39 1180
40 1240
41 1302
42 1365
43 1430
44 1496
45 1564
46 1633
47 1704
48 1776
49 1850
50 1925

[0,2,5,10,16,24,33,44,56,70,85,102,120,140,161,
 184,208,234,261,290,320,352,385,420,456,494,533,
 574,616,660,705,752,800,850,901,954,1008,1064,
 1121,1180,1240,1302,1365,1430,1496,1564,1633,1704,
 1776,1850,1925]

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Last modified April 25 03:15 EDT 2024. Contains 371964 sequences. (Running on oeis4.)