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.

A292033 Unitary phibonacci numbers: solutions k of the equation uphi(k) = uphi(k-1) + uphi(k-2), where uphi(k) is the unitary totient function (A047994).

Table of values

n a(n)
1 3
2 4
3 7
4 23
5 9179
6 244967
7 14307856
8 24571871
9 128199059
10 140830367
11 401767631
12 420567856
13 468190439
14 525970979
15 780768167
16 886434647
17 1597167647
18 4046753951
19 4473784823
20 5364666167
21 5515718207
22 11175736336
23 14408460167
24 18026319712
25 20106993887
26 20357733131

List of values

[3, 4, 7, 23, 9179, 244967, 14307856, 24571871, 128199059, 140830367, 401767631, 420567856, 468190439, 525970979, 780768167, 886434647, 1597167647, 4046753951, 4473784823, 5364666167, 5515718207, 11175736336, 14408460167, 18026319712, 20106993887, 20357733131]

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

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