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.

A119127 Numbers k such that the k-th triangular number contains only digits {1,4,7}.

Table of values

n a(n)
1 1
2 18
3 38
4 58
5 15306
6 28893
7 3851686
8 595216169886
9 53248694146381
10 536869582203620058
11 14927275335718688666

List of values

[1, 18, 38, 58, 15306, 28893, 3851686, 595216169886, 53248694146381, 536869582203620058, 14927275335718688666]