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.

A267143 Primes q such that Sum_(q-1; i=1..m) e(i)/p(i) is an integer k, where the prime factorization of n is Product_(n; i=1..m) p(i)^e(i).

Table of values

n a(n)
1 5
2 17
3 109
4 257
5 433
6 2917
7 65537
8 746497
9 1350001
10 1769473
11 3294173
12 5038849
13 5400001
14 8503057
15 21600001
16 28311553
17 57395629
18 113246209
19 145800001
20 210827009
21 984150001
22 1811939329
23 2500000001
24 3936600001
25 4218750001
26 5692329217
27 9331200001
28 16875000001

List of values

[5, 17, 109, 257, 433, 2917, 65537, 746497, 1350001, 1769473, 3294173, 5038849, 5400001, 8503057, 21600001, 28311553, 57395629, 113246209, 145800001, 210827009, 984150001, 1811939329, 2500000001, 3936600001, 4218750001, 5692329217, 9331200001, 16875000001]