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.

A203244 Second elementary symmetric function of the first n terms of (1,4,16,64,256,...).

Table of values

n a(n)
2 4
3 84
4 1428
5 23188
6 372372
7 5963412
8 95436436
9 1527070356
10 24433475220
11 390937001620
12 6254997618324
13 100079984262804
14 1601279837683348
15 25620477760847508
16 409927645605215892
17 6558842335410077332
18 104941477389467729556

List of values

[4, 84, 1428, 23188, 372372, 5963412, 95436436, 1527070356, 24433475220, 390937001620, 6254997618324, 100079984262804, 1601279837683348, 25620477760847508, 409927645605215892, 6558842335410077332, 104941477389467729556]

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

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