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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.

A349077 a(n) = 4^n * P(2*n, n), where P(n, x) is n-th Legendre polynomial.

Table of values

n a(n)
0 1
1 4
2 886
3 575296
4 748553926
5 1638884021248
6 5430931463592636
7 25386301852394340352
8 159203574262026117932614
9 1290247693627696897075707904
10 13126820230906199855332092508756
11 163819123650250694146607819756929024
12 2460884002303138397686849151579559249436

List of values

[1, 4, 886, 575296, 748553926, 1638884021248, 5430931463592636, 25386301852394340352, 159203574262026117932614, 1290247693627696897075707904, 13126820230906199855332092508756, 163819123650250694146607819756929024, 2460884002303138397686849151579559249436]

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

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