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.

A067115 Let N = 1357911131517192123252729... = concatenation of odd numbers. Then a(n) = sum of first n digits of N.

Table of values

n a(n)
1 1
2 4
3 9
4 16
5 25
6 26
7 27
8 28
9 31
10 32
11 37
12 38
13 45
14 46
15 55
16 57
17 58
18 60
19 63
20 65
21 70
22 72
23 79
24 81
25 90
26 93
27 94
28 97
29 100
30 103
31 108

List of values

[1, 4, 9, 16, 25, 26, 27, 28, 31, 32, 37, 38, 45, 46, 55, 57, 58, 60, 63, 65, 70, 72, 79, 81, 90, 93, 94, 97, 100, 103, 108]