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.

A254959 Squares not divisible by 10 with digits d_1, d_2, ... d_k such that d_1^2 + ... + d_k^2 is a square.

Table of values

n a(n)
1 1
2 4
3 9
4 676
5 841
6 1444
7 4225
8 24025
9 42025
10 42436
11 43264
12 66049
13 109561
14 119716
15 155236
16 239121
17 244036
18 248004
19 252004
20 335241
21 355216
22 362404
23 373321
24 643204
25 664225
26 703921
27 717409
28 751689
29 790321
30 802816
31 840889
32 850084
33 851929
34 1110916
35 1263376
36 1292769
37 1334025
38 1361889
39 1366561
40 1371241
41 1413721
42 1522756
43 1718721

List of values

[1, 4, 9, 676, 841, 1444, 4225, 24025, 42025, 42436, 43264, 66049, 109561, 119716, 155236, 239121, 244036, 248004, 252004, 335241, 355216, 362404, 373321, 643204, 664225, 703921, 717409, 751689, 790321, 802816, 840889, 850084, 851929, 1110916, 1263376, 1292769, 1334025, 1361889, 1366561, 1371241, 1413721, 1522756, 1718721]

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

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