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.

A302909 Determinant of n X n matrix whose main diagonal consists of the first n 5-gonal numbers and all other elements are 1's.

Table of values

n a(n)
1 1
2 4
3 44
4 924
5 31416
6 1570800
7 108385200
8 9863053200
9 1144114171200
10 164752440652800
11 28831677114240000
12 6025820516876160000
13 1482351847151535360000
14 423952628285339112960000
15 139480414705876568163840000
16 52305155514703713061440000000

List of values

[1, 4, 44, 924, 31416, 1570800, 108385200, 9863053200, 1144114171200, 164752440652800, 28831677114240000, 6025820516876160000, 1482351847151535360000, 423952628285339112960000, 139480414705876568163840000, 52305155514703713061440000000]

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

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