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.

A172314 Numbers k such that phi(k+1) = 4*phi(k).

Table of values

n a(n)
1 1260
2 13650
3 17556
4 18720
5 24510
6 42120
7 113610
8 244530
9 266070
10 712080
11 749910
12 795690
13 992250
14 1080720
15 1286730
16 1458270
17 1849470
18 2271060
19 2457690
20 3295380
21 3370770
22 3414840
23 3714750
24 4061970
25 4736490
26 5314050
27 5827080
28 6566910
29 6935082
30 7303980
31 7864080

List of values

[1260, 13650, 17556, 18720, 24510, 42120, 113610, 244530, 266070, 712080, 749910, 795690, 992250, 1080720, 1286730, 1458270, 1849470, 2271060, 2457690, 3295380, 3370770, 3414840, 3714750, 4061970, 4736490, 5314050, 5827080, 6566910, 6935082, 7303980, 7864080]