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.

A211212 4-alternating permutations of length 4n.

Table of values

n a(n)
0 1
1 1
2 69
3 33661
4 60376809
5 288294050521
6 3019098162602349
7 60921822444067346581
8 2159058013333667522020689
9 125339574046311949415000577841
10 11289082167259099068433198467575829
11 1510335441937894173173702826484473600301

List of values

[1, 1, 69, 33661, 60376809, 288294050521, 3019098162602349, 60921822444067346581, 2159058013333667522020689, 125339574046311949415000577841, 11289082167259099068433198467575829, 1510335441937894173173702826484473600301]

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

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