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.

A230356 Nonsquare numbers n such that digit sum of n = digit sum of square part of n.

Table of values

n a(n)
1 10
2 18
3 27
4 40
5 45
6 54
7 63
8 72
9 90
10 108
11 117
12 126
13 135
14 153
15 160
16 162
17 171
18 180
19 207
20 216
21 220
22 234
23 243
24 250
25 252
26 261
27 270
28 304
29 306
30 315
31 333
32 342
33 351
34 360
35 405
36 414
37 423
38 432
39 450
40 490
41 504
42 513
43 522
44 531
45 540
46 603
47 612
48 621
49 630
50 640
51 702
52 711
53 720
54 801
55 810
56 931

List of values

[10, 18, 27, 40, 45, 54, 63, 72, 90, 108, 117, 126, 135, 153, 160, 162, 171, 180, 207, 216, 220, 234, 243, 250, 252, 261, 270, 304, 306, 315, 333, 342, 351, 360, 405, 414, 423, 432, 450, 490, 504, 513, 522, 531, 540, 603, 612, 621, 630, 640, 702, 711, 720, 801, 810, 931]

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

Content is available under The OEIS End-User License Agreement.