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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.

A000172 The Franel number a(n) = Sum_{k = 0..n} binomial(n,k)^3.

Table of values

n a(n)
0 1
1 2
2 10
3 56
4 346
5 2252
6 15184
7 104960
8 739162
9 5280932
10 38165260
11 278415920
12 2046924400
13 15148345760
14 112738423360
15 843126957056
16 6332299624282
17 47737325577620
18 361077477684436
19 2739270870994736
20 20836827035351596
21 158883473753259752
22 1214171997616258240

List of values

[1, 2, 10, 56, 346, 2252, 15184, 104960, 739162, 5280932, 38165260, 278415920, 2046924400, 15148345760, 112738423360, 843126957056, 6332299624282, 47737325577620, 361077477684436, 2739270870994736, 20836827035351596, 158883473753259752, 1214171997616258240]

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

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