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.

A199857 Numbers such that the sum of the squares of the largest and the smallest prime divisor equals the sum of the squares of the other distinct prime divisors.

Table of values

n a(n)
1 24871
2 81719
3 81809
4 88711
5 174097
6 198679
7 201761
8 256151
9 273581
10 290191
11 329681
12 405449
13 422807
14 428281
15 472549
16 572663
17 592999
18 604279
19 620977
20 701561
21 728119
22 752191
23 770431
24 876641
25 898909
26 1011839
27 1063517
28 1121729
29 1178879
30 1218679
31 1251439
32 1389223

List of values

[24871, 81719, 81809, 88711, 174097, 198679, 201761, 256151, 273581, 290191, 329681, 405449, 422807, 428281, 472549, 572663, 592999, 604279, 620977, 701561, 728119, 752191, 770431, 876641, 898909, 1011839, 1063517, 1121729, 1178879, 1218679, 1251439, 1389223]

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

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