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A009857 as a simple table

n a(n)
0 1
1 4
2 10
3 19
4 33
5 52
6 72
7 102
8 126
9 161
10 204
11 240
12 292
13 332
14 391
15 455
16 510
17 580
18 637
19 719
20 808
21 879
22 969
23 1043
24 1141
25 1267
26 1345
27 1456
28 1550
29 1665
30 1824
31 1912
32 2045
33 2149
34 2293
35 2481
36 2576
37 2736
38 2851
39 3016
40 3242
41 3341
42 3518
43 3658
44 3839
45 4100
46 4208

[1,4,10,19,33,52,72,102,126,161,204,240,292,332,
 391,455,510,580,637,719,808,879,969,1043,1141,
 1267,1345,1456,1550,1665,1824,1912,2045,2149,2293,
 2481,2576,2736,2851,3016,3242,3341,3518,3658,3839,
 4100,4208]

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Last modified April 24 20:08 EDT 2024. Contains 371963 sequences. (Running on oeis4.)