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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.

A217390 Numbers n such that sum of squares of digits of n equals the sum of prime divisors of n.

Table of values

n a(n)
1 12
2 581
3 1014
4 1036
5 1180
6 1272
7 1746
8 2553
9 3420
10 3741
11 4140
12 4544
13 5104
14 5238
15 5313
16 5966
17 7134
18 7272
19 8174
20 8346
21 8549
22 9153
23 9525
24 9536
25 10476
26 11070
27 11800
28 12350
29 12882
30 13481
31 13702
32 14045
33 15341
34 15974
35 16415
36 16999
37 17051
38 17220
39 17444
40 18361
41 18798

List of values

[12, 581, 1014, 1036, 1180, 1272, 1746, 2553, 3420, 3741, 4140, 4544, 5104, 5238, 5313, 5966, 7134, 7272, 8174, 8346, 8549, 9153, 9525, 9536, 10476, 11070, 11800, 12350, 12882, 13481, 13702, 14045, 15341, 15974, 16415, 16999, 17051, 17220, 17444, 18361, 18798]

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

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