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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.

A332080 Irregular table in which row n = 1, 2, 3... lists the lexicographically first triangle of height and width n with minimal sum, distinct positive entries using only digits <= n and no diagonal having the same digit in two entries.

Table of values

n a(n)
1 1
2 2
3 1
4 10
5 3
6 2
7 20
8 10
9 1
10 11
11 4
12 3
13 30
14 20
15 2
16 22
17 1
18 14
19 10
20 11
21 5
22 4
23 44
24 3
25 33
26 30
27 2
28 20
29 25
30 22
31 1
32 15
33 14
34 10
35 11

List of values

[1, 2, 1, 10, 3, 2, 20, 10, 1, 11, 4, 3, 30, 20, 2, 22, 1, 14, 10, 11, 5, 4, 44, 3, 33, 30, 2, 20, 25, 22, 1, 15, 14, 10, 11]

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

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