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.

A201084 Number of -4..4 arrays of n elements with first and second differences also in -4..4.

Table of values

n a(n)
1 9
2 61
3 323
4 1759
5 9593
6 52401
7 286207
8 1563111
9 8536807
10 46623423
11 254632457
12 1390667451
13 7595086541
14 41480325457
15 226543492197
16 1237260160029
17 6757257460559
18 36904549131343
19 201553034567103
20 1100775560224471

List of values

[9, 61, 323, 1759, 9593, 52401, 286207, 1563111, 8536807, 46623423, 254632457, 1390667451, 7595086541, 41480325457, 226543492197, 1237260160029, 6757257460559, 36904549131343, 201553034567103, 1100775560224471]

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

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