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.

A240438 Greatest minimal difference between numbers of adjacent cells in a regular hexagonal honeycomb of order n with cells numbered from 1 through the total number of cells, the order n corresponding to the number of cells on one side of the honeycomb.

Table of values

n a(n)
1 0
2 1
3 5
4 11
5 18
6 28
7 40
8 53
9 69
10 87
11 106
12 128
13 152
14 177
15 205
16 235
17 266
18 300
19 336
20 373
21 413
22 455
23 498
24 544
25 592
26 641
27 693
28 747
29 802
30 860
31 920
32 981
33 1045
34 1111
35 1178
36 1248
37 1320
38 1393
39 1469
40 1547
41 1626
42 1708
43 1792
44 1877
45 1965
46 2055
47 2146
48 2240
49 2336
50 2433
51 2533
52 2635

List of values

[0, 1, 5, 11, 18, 28, 40, 53, 69, 87, 106, 128, 152, 177, 205, 235, 266, 300, 336, 373, 413, 455, 498, 544, 592, 641, 693, 747, 802, 860, 920, 981, 1045, 1111, 1178, 1248, 1320, 1393, 1469, 1547, 1626, 1708, 1792, 1877, 1965, 2055, 2146, 2240, 2336, 2433, 2533, 2635]