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.

A256646 26-gonal pyramidal numbers: a(n) = n*(n+1)*(8*n-7)/2.

Table of values

n a(n)
0 0
1 1
2 27
3 102
4 250
5 495
6 861
7 1372
8 2052
9 2925
10 4015
11 5346
12 6942
13 8827
14 11025
15 13560
16 16456
17 19737
18 23427
19 27550
20 32130
21 37191
22 42757
23 48852
24 55500
25 62725
26 70551
27 79002
28 88102
29 97875
30 108345
31 119536
32 131472
33 144177
34 157675
35 171990
36 187146
37 203167
38 220077

List of values

[0, 1, 27, 102, 250, 495, 861, 1372, 2052, 2925, 4015, 5346, 6942, 8827, 11025, 13560, 16456, 19737, 23427, 27550, 32130, 37191, 42757, 48852, 55500, 62725, 70551, 79002, 88102, 97875, 108345, 119536, 131472, 144177, 157675, 171990, 187146, 203167, 220077]