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.

A383356 a(n) = index of the smallest nonagonal number having the same digital sum as the n-th triangular number.

Table of values

n a(n)
1 1
2 6
3 3
4 1
5 3
6 6
7 4
8 2
9 2
10 4
11 5
12 12
13 4
14 3
15 6
16 4
17 2
18 2
19 4
20 6
21 3
22 4
23 12
24 6
25 4
26 2
27 11
28 4
29 5
30 12
31 13
32 12
33 5
34 13
35 2
36 11
37 4
38 5
39 12
40 4
41 12
42 5
43 13
44 11
45 2
46 4
47 5
48 12
49 4
50 12
51 5
52 13
53 2
54 11
55 4
56 23
57 12
58 4
59 12
60 5
61 13
62 11
63 2
64 4
65 5
66 3
67 13
68 12
69 5
70 13
71 11
72 11
73 4
74 23
75 12
76 13
77 3
78 5
79 4
80 2
81 2
82 4

List of values

[1, 6, 3, 1, 3, 6, 4, 2, 2, 4, 5, 12, 4, 3, 6, 4, 2, 2, 4, 6, 3, 4, 12, 6, 4, 2, 11, 4, 5, 12, 13, 12, 5, 13, 2, 11, 4, 5, 12, 4, 12, 5, 13, 11, 2, 4, 5, 12, 4, 12, 5, 13, 2, 11, 4, 23, 12, 4, 12, 5, 13, 11, 2, 4, 5, 3, 13, 12, 5, 13, 11, 11, 4, 23, 12, 13, 3, 5, 4, 2, 2, 4]

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

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