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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.

A121000 Numerators of partial sums of Catalan numbers scaled by powers of 1/18^2 = 1/324.

Table of values

n a(n)
0 1
1 325
2 52651
3 34117853
4 5527092193
5 596925956851
6 96702005009873
7 125325798492795551
8 60908338067498638501
9 19734301533869558876755
10 3196956848486868538038509
11 2071628037819490812648983225

List of values

[1, 325, 52651, 34117853, 5527092193, 596925956851, 96702005009873, 125325798492795551, 60908338067498638501, 19734301533869558876755, 3196956848486868538038509, 2071628037819490812648983225]

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

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