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.

A201086 Number of -6..6 arrays of n elements with first and second differences also in -6..6.

Table of values

n a(n)
1 13
2 127
3 967
4 7581
5 59533
6 468159
7 3681179
8 28943479
9 227567727
10 1789258703
11 14068129953
12 110611309721
13 869686276975
14 6837946387417
15 53763653212357
16 422719081839837
17 3323647323173331
18 26132322856122051
19 205466534630289505

List of values

[13, 127, 967, 7581, 59533, 468159, 3681179, 28943479, 227567727, 1789258703, 14068129953, 110611309721, 869686276975, 6837946387417, 53763653212357, 422719081839837, 3323647323173331, 26132322856122051, 205466534630289505]

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

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