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.

A200453 Number of -7..7 arrays x(0..n+1) of n+2 elements with zero sum and nonzero first and second differences.

Table of values

n a(n)
1 142
2 1832
3 22276
4 278906
5 3513884
6 44716536
7 572857272
8 7380022092
9 95496980144
10 1240352594210
11 16161267003100
12 211148128583658
13 2765181621011902
14 36287540439791446
15 477071904597059874
16 6282247056373911518

List of values

[142, 1832, 22276, 278906, 3513884, 44716536, 572857272, 7380022092, 95496980144, 1240352594210, 16161267003100, 211148128583658, 2765181621011902, 36287540439791446, 477071904597059874, 6282247056373911518]

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

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