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.

A372464 Coefficient of x^n in the expansion of 1 / ( (1-x) * (1-x+x^2) )^(2*n).

Table of values

n a(n)
0 1
1 4
2 32
3 286
4 2688
5 26004
6 256334
7 2560352
8 25824768
9 262447684
10 2683152032
11 27565067600
12 284330359950
13 2942808943572
14 30546407611136
15 317867390671536
16 3314979452815360
17 34637849797078380
18 362544825234198020
19 3800439733237986800
20 39893311092729794688

List of values

[1, 4, 32, 286, 2688, 26004, 256334, 2560352, 25824768, 262447684, 2683152032, 27565067600, 284330359950, 2942808943572, 30546407611136, 317867390671536, 3314979452815360, 34637849797078380, 362544825234198020, 3800439733237986800, 39893311092729794688]

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

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