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.

A180347 The number of n-digit numbers requiring 4 nonzero squares in their representation as sum of squares.

Table of values

n a(n)
1 1
2 14
3 150
4 1500
5 14999
6 150000
7 1499999
8 15000000
9 149999998
10 1500000001
11 14999999999
12 149999999999
13 1500000000001
14 14999999999999
15 149999999999999
16 1500000000000001
17 14999999999999998
18 149999999999999999
19 1500000000000000003
20 14999999999999999996

List of values

[1, 14, 150, 1500, 14999, 150000, 1499999, 15000000, 149999998, 1500000001, 14999999999, 149999999999, 1500000000001, 14999999999999, 149999999999999, 1500000000000001, 14999999999999998, 149999999999999999, 1500000000000000003, 14999999999999999996]

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

Content is available under The OEIS End-User License Agreement.