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.

A299868 The sum of the first n terms of the sequence is the concatenation of the first n digits of the sequence, and a(1) = 5.

Table of values

n a(n)
1 5
2 50
3 495
4 4954
5 49545
6 495446
7 4954459
8 49544595
9 495445946
10 4954459459
11 49544594590
12 495445945905
13 4954459459046
14 49544594590459
15 495445945904591
16 4954459459045909
17 49544594590459095
18 495445945904590946
19 4954459459045909459
20 49544594590459094590
21 495445945904590945902
22 4954459459045909459018

List of values

[5, 50, 495, 4954, 49545, 495446, 4954459, 49544595, 495445946, 4954459459, 49544594590, 495445945905, 4954459459046, 49544594590459, 495445945904591, 4954459459045909, 49544594590459095, 495445945904590946, 4954459459045909459, 49544594590459094590, 495445945904590945902, 4954459459045909459018]

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

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