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.

A276755 a(n) = A275706(n)^2 + A276688(n)^2 = [n]{1+i}! * [n]{1-i}!, where [n]_q! is the q-factorial, i = sqrt(-1).

Table of values

n a(n)
0 1
1 1
2 5
3 65
4 1625
5 66625
6 4330625
7 489360625
8 110106140625
9 52961053640625
10 54285079981640625
11 114704374001206640625
12 484625980155098056640625
13 4032572780870570929306640625

List of values

[1, 1, 5, 65, 1625, 66625, 4330625, 489360625, 110106140625, 52961053640625, 54285079981640625, 114704374001206640625, 484625980155098056640625, 4032572780870570929306640625]

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

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