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.

A161625 Sum of all numbers from 1 up to the final digit of prime(n).

Table of values

n a(n)
1 3
2 6
3 15
4 28
5 1
6 6
7 28
8 45
9 6
10 45
11 1
12 28
13 1
14 6
15 28
16 6
17 45
18 1
19 28
20 1
21 6
22 45
23 6
24 45
25 28
26 1
27 6
28 28
29 45
30 6
31 28
32 1
33 28
34 45
35 45
36 1
37 28
38 6
39 28
40 6
41 45
42 1
43 1
44 6
45 28
46 45
47 1
48 6
49 28
50 45
51 6
52 45
53 1
54 1
55 28
56 6
57 45
58 1
59 28
60 1
61 6
62 6
63 28
64 1
65 6
66 28
67 1
68 28
69 28
70 45
71 6
72 45
73 28
74 6
75 45
76 6
77 45
78 28
79 1
80 45

List of values

[3, 6, 15, 28, 1, 6, 28, 45, 6, 45, 1, 28, 1, 6, 28, 6, 45, 1, 28, 1, 6, 45, 6, 45, 28, 1, 6, 28, 45, 6, 28, 1, 28, 45, 45, 1, 28, 6, 28, 6, 45, 1, 1, 6, 28, 45, 1, 6, 28, 45, 6, 45, 1, 1, 28, 6, 45, 1, 28, 1, 6, 6, 28, 1, 6, 28, 1, 28, 28, 45, 6, 45, 28, 6, 45, 6, 45, 28, 1, 45]

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

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