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.

A036318 Composite numbers whose prime factors contain no digits other than 4 and 7.

Table of values

n a(n)
1 49
2 329
3 343
4 2209
5 2303
6 2401
7 15463
8 16121
9 16807
10 31129
11 52339
12 103823
13 108241
14 112847
15 117649
16 209009
17 217903
18 313439
19 334439
20 351419
21 366373
22 523229
23 542129
24 542339
25 544229
26 726761
27 757687
28 789929
29 823543
30 1463063
31 1525321
32 2104519

List of values

[49, 329, 343, 2209, 2303, 2401, 15463, 16121, 16807, 31129, 52339, 103823, 108241, 112847, 117649, 209009, 217903, 313439, 334439, 351419, 366373, 523229, 542129, 542339, 544229, 726761, 757687, 789929, 823543, 1463063, 1525321, 2104519]