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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.

A239831 Floor(7n^2/2) + floor(5n/2) + floor(3n/7).

Table of values

n a(n)
1 5
2 19
3 39
4 67
5 101
6 143
7 191
8 247
9 308
10 379
11 454
12 539
13 628
14 727
15 830
16 942
17 1060
18 1186
19 1318
20 1458
21 1604
22 1758
23 1917
24 2086
25 2259
26 2442
27 2629
28 2826
29 3027
30 3237
31 3453
32 3677
33 3907
34 4145
35 4389
36 4641
37 4898
38 5165
39 5436
40 5717
41 6002
42 6297
43 6596
44 6904
45 7218
46 7540

List of values

[5, 19, 39, 67, 101, 143, 191, 247, 308, 379, 454, 539, 628, 727, 830, 942, 1060, 1186, 1318, 1458, 1604, 1758, 1917, 2086, 2259, 2442, 2629, 2826, 3027, 3237, 3453, 3677, 3907, 4145, 4389, 4641, 4898, 5165, 5436, 5717, 6002, 6297, 6596, 6904, 7218, 7540]

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

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