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.

A348415 Numbers k such that k and k+1 have the same denominator of the harmonic means of their divisors.

Table of values

n a(n)
1 12
2 88
3 180
4 266
5 321
6 604
7 4277
8 4364
9 8632
10 15861
11 18720
12 28461
13 47613
14 63546
15 97412
16 98907
17 135078
18 137333
19 154132
20 179621
21 185776
22 192699
23 203709
24 265489
25 284883
26 344217
27 383466
28 517610
29 604197
30 876469
31 1089604
32 1277518
33 1713865
34 1839123
35 1893268
36 2349390

List of values

[12, 88, 180, 266, 321, 604, 4277, 4364, 8632, 15861, 18720, 28461, 47613, 63546, 97412, 98907, 135078, 137333, 154132, 179621, 185776, 192699, 203709, 265489, 284883, 344217, 383466, 517610, 604197, 876469, 1089604, 1277518, 1713865, 1839123, 1893268, 2349390]

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

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