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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.

A386991 Numbers k such that k^2 + sopfr(k)^2 is a square, where sopfr = A001414.

Table of values

n a(n)
1 1
2 8
3 15
4 35
5 112
6 143
7 323
8 899
9 1763
10 3599
11 5183
12 10403
13 11663
14 19043
15 22499
16 32399
17 36863
18 39203
19 51983
20 57599
21 72899
22 79523
23 97343
24 121103
25 176399
26 186623
27 213443
28 272483
29 324899
30 359999
31 381923
32 412163
33 435599
34 656099
35 675683
36 685583
37 736163

List of values

[1, 8, 15, 35, 112, 143, 323, 899, 1763, 3599, 5183, 10403, 11663, 19043, 22499, 32399, 36863, 39203, 51983, 57599, 72899, 79523, 97343, 121103, 176399, 186623, 213443, 272483, 324899, 359999, 381923, 412163, 435599, 656099, 675683, 685583, 736163]

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

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