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.

A188356 Number of arrangements of n+1 numbers x(i) in -7..7 with the sum of x(i)*x(i+1) equal to zero.

Table of values

n a(n)
1 29
2 435
3 1569
4 22583
5 163745
6 2295051
7 25217201
8 355442823
9 4602176797
10 65556183495
11 902973314217
12 12966307902587
13 183476638021301
14 2650029026701115
15 38023581868527461
16 551634055112635223

List of values

[29, 435, 1569, 22583, 163745, 2295051, 25217201, 355442823, 4602176797, 65556183495, 902973314217, 12966307902587, 183476638021301, 2650029026701115, 38023581868527461, 551634055112635223]

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

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