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.

A376830 Numbers k such that tau(k + tau(k)) = tau(k) + tau(tau(k)), where tau = A000005.

Table of values

n a(n)
1 1
2 13
3 19
4 31
5 37
6 53
7 67
8 83
9 88
10 89
11 109
12 113
13 127
14 131
15 139
16 152
17 157
18 181
19 190
20 199
21 211
22 225
23 233
24 251
25 257
26 263
27 276
28 286
29 293
30 307
31 317
32 337
33 344
34 353
35 379
36 389
37 401
38 406
39 409
40 443
41 449
42 467
43 479
44 487
45 491
46 499
47 503
48 509
49 536
50 541
51 557
52 563
53 571
54 577
55 587
56 612
57 631
58 642
59 647
60 653
61 658
62 677

List of values

[1, 13, 19, 31, 37, 53, 67, 83, 88, 89, 109, 113, 127, 131, 139, 152, 157, 181, 190, 199, 211, 225, 233, 251, 257, 263, 276, 286, 293, 307, 317, 337, 344, 353, 379, 389, 401, 406, 409, 443, 449, 467, 479, 487, 491, 499, 503, 509, 536, 541, 557, 563, 571, 577, 587, 612, 631, 642, 647, 653, 658, 677]

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

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