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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.

A246010 a(n) = floor(5*prime(n)^2 / 4).

Table of values

n a(n)
1 5
2 11
3 31
4 61
5 151
6 211
7 361
8 451
9 661
10 1051
11 1201
12 1711
13 2101
14 2311
15 2761
16 3511
17 4351
18 4651
19 5611
20 6301
21 6661
22 7801
23 8611
24 9901
25 11761
26 12751
27 13261
28 14311
29 14851
30 15961
31 20161
32 21451
33 23461
34 24151
35 27751
36 28501
37 30811
38 33211

List of values

[5, 11, 31, 61, 151, 211, 361, 451, 661, 1051, 1201, 1711, 2101, 2311, 2761, 3511, 4351, 4651, 5611, 6301, 6661, 7801, 8611, 9901, 11761, 12751, 13261, 14311, 14851, 15961, 20161, 21451, 23461, 24151, 27751, 28501, 30811, 33211]

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

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