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.

A145570 Circulants of Catalan numbers.

Table of values

n a(n)
1 1
2 0
3 4
4 459
5 474743
6 5237087765
7 686666209113536
8 1140713637429903585344
9 24957776794187383667855422048
10 7377122100200717681983830999516060000
11 30004208141654594144715773978429859682880072414
12 1703184026083327296951313841743251806796128938200000000000
13 1365027457901516492029047382022588117973123824294791438142988114734512

List of values

[1, 0, 4, 459, 474743, 5237087765, 686666209113536, 1140713637429903585344, 24957776794187383667855422048, 7377122100200717681983830999516060000, 30004208141654594144715773978429859682880072414, 1703184026083327296951313841743251806796128938200000000000, 1365027457901516492029047382022588117973123824294791438142988114734512]

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

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