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.

A188118 Number of strictly increasing arrangements of n nonzero numbers in -(n+3)..(n+3) with sum zero.

Table of values

n a(n)
1 0
2 5
3 12
4 51
5 172
6 624
7 2216
8 7970
9 28660
10 103599
11 375854
12 1368883
13 5003340
14 18351050
15 67525962
16 249235562
17 922567826
18 3424217898
19 12741735980
20 47526320684
21 177671217830
22 665611279282
23 2498575823284
24 9396889413586

List of values

[0, 5, 12, 51, 172, 624, 2216, 7970, 28660, 103599, 375854, 1368883, 5003340, 18351050, 67525962, 249235562, 922567826, 3424217898, 12741735980, 47526320684, 177671217830, 665611279282, 2498575823284, 9396889413586]

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

Content is available under The OEIS End-User License Agreement.