cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A102744 Integers that do not appear in the sequence (A102722) given by the floor of the sum of {n/k} while k=1,...,n. Here {x}:=x-[x].

Table of values

n a(n)
1 3
2 12
3 37
4 57
5 60
6 70
7 75
8 85
9 89
10 92
11 131
12 147
13 161
14 166
15 177
16 181
17 182
18 194
19 200
20 211
21 224
22 228
23 233
24 242
25 244
26 255
27 259
28 260
29 265
30 269
31 271
32 281
33 285
34 293
35 294
36 321
37 325
38 329
39 336
40 343
41 364
42 367
43 394
44 402
45 415
46 425
47 435
48 445
49 464
50 465
51 484
52 499
53 522
54 531

List of values

[3, 12, 37, 57, 60, 70, 75, 85, 89, 92, 131, 147, 161, 166, 177, 181, 182, 194, 200, 211, 224, 228, 233, 242, 244, 255, 259, 260, 265, 269, 271, 281, 285, 293, 294, 321, 325, 329, 336, 343, 364, 367, 394, 402, 415, 425, 435, 445, 464, 465, 484, 499, 522, 531]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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