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.

A241236 Number of scalene triangles, distinct up to congruence, on a centered hexagonal grid of size n.

Table of values

n a(n)
1 0
2 1
3 19
4 99
5 310
6 760
7 1556
8 2863
9 4849
10 7713
11 11702
12 17077
13 24066
14 33021
15 44272
16 58180
17 75148
18 95526
19 119758
20 148489
21 181924
22 220796
23 265519
24 316736
25 375006
26 441061
27 515467
28 598680
29 691761
30 795410
31 909971
32 1036745
33 1176108
34 1329286
35 1496711
36 1679852
37 1879036
38 2095235

List of values

[0, 1, 19, 99, 310, 760, 1556, 2863, 4849, 7713, 11702, 17077, 24066, 33021, 44272, 58180, 75148, 95526, 119758, 148489, 181924, 220796, 265519, 316736, 375006, 441061, 515467, 598680, 691761, 795410, 909971, 1036745, 1176108, 1329286, 1496711, 1679852, 1879036, 2095235]