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.

A081922 Expansion of exp(4x)/sqrt(1-x^2).

Table of values

n a(n)
0 1
1 4
2 17
3 76
4 361
5 1844
6 10321
7 64348
8 453329
9 3619684
10 32666161
11 329434604
12 3677682937
13 44901581716
14 595567550321
15 8505627039484
16 130307878338721
17 2126927187154628
18 36912563369550289
19 677277819029706124

List of values

[1, 4, 17, 76, 361, 1844, 10321, 64348, 453329, 3619684, 32666161, 329434604, 3677682937, 44901581716, 595567550321, 8505627039484, 130307878338721, 2126927187154628, 36912563369550289, 677277819029706124]

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

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