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.

A200451 Number of -5..5 arrays x(0..n+1) of n+2 elements with zero sum and nonzero first and second differences.

Table of values

n a(n)
1 72
2 678
3 5720
4 50852
5 451708
6 4062384
7 36725772
8 334032710
9 3050654456
10 27965763262
11 257160791680
12 2371128350480
13 21913699015614
14 202938626310668
15 1882772669652668
16 17495621074794634
17 162811923678190584

List of values

[72, 678, 5720, 50852, 451708, 4062384, 36725772, 334032710, 3050654456, 27965763262, 257160791680, 2371128350480, 21913699015614, 202938626310668, 1882772669652668, 17495621074794634, 162811923678190584]