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.

A029564 Quasi-Carmichael numbers to base -4: squarefree composites n such that prime p|n ==> p+4|n+4.

Table of values

n a(n)
1 1886
2 50711
3 149171
4 222101
5 628421
6 766931
7 1105646
8 1778621
9 2523902
10 5430047
11 5836181
12 6265805
13 9306986
14 10671881
15 12450371
16 21817715
17 24953666
18 32029934
19 34836791
20 38697746
21 48807671
22 55252571
23 57264161
24 63697721
25 69300086
26 74157926

List of values

[1886, 50711, 149171, 222101, 628421, 766931, 1105646, 1778621, 2523902, 5430047, 5836181, 6265805, 9306986, 10671881, 12450371, 21817715, 24953666, 32029934, 34836791, 38697746, 48807671, 55252571, 57264161, 63697721, 69300086, 74157926]