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.

A217773 Numbers n such that tau(n) = tau(n+1) and phi(n) = phi(n+1).

Table of values

n a(n)
1 104
2 3255
3 22935
4 983775
5 1025504
6 2200694
7 2619705
8 4163355
9 4447064
10 4695704
11 6372794
12 9718904
13 11903775
14 23992215
15 26879684
16 29357475
17 37239735
18 40588485
19 41207144
20 48615735
21 56424555
22 76466985
23 81591194
24 83864055
25 113664135
26 118018094
27 166758015

List of values

[104, 3255, 22935, 983775, 1025504, 2200694, 2619705, 4163355, 4447064, 4695704, 6372794, 9718904, 11903775, 23992215, 26879684, 29357475, 37239735, 40588485, 41207144, 48615735, 56424555, 76466985, 81591194, 83864055, 113664135, 118018094, 166758015]

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

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